Rest, Recover, Grow: The Essential Link Between Sleep & Growth Hormone

Institute of Human Anatomy
25 Feb 202410:54

Summary

TLDRThis transcript discusses the importance of sleep for releasing growth hormone, which repairs tissues and builds muscle. It explains how growth hormone is released in pulses, with the largest spike occurring during deep sleep. To optimize this, the speaker recommends consistent sleep schedules as abrupt routine changes can diminish growth hormone release despite equal sleep duration. They also advise avoiding late meals. Overall, proper sleep promotes greater growth hormone release, improving recovery from exercise and injury.

Takeaways

  • 😴 Proper sleep, especially in the first 1-2 hours, is critical for growth hormone release and body recovery
  • 💪 Growth hormone promotes tissue repair, protein synthesis, bone/muscle growth - essential for recovery
  • 🧠 The hypothalamus and pituitary gland work together to control growth hormone release
  • ⏰ Consistent sleep routine optimizes growth hormone release at the right times
  • 📉 Missing early deep sleep can diminish the growth hormone spike, even if total sleep is the same
  • 🚫 Avoid food 2-3 hours before bed to improve sleep quality and growth hormone release
  • 🏋️‍♀️ Exercise, low blood sugar, stress can also stimulate growth hormone release
  • 😑 Chronic sleep issues can negatively impact cognitive function, health and productivity
  • 🛏 At-home sleep tests like Sleep Doctor provide an affordable way to diagnose sleep problems
  • 🌱 Occasional changes in bedtime are ok, but consistent sleep routine is ideal over time

Q & A

  • What gland secretes growth hormone into the bloodstream?

    -The pituitary gland, which is located at the base of the brain, secretes growth hormone into the bloodstream.

  • How does growth hormone help with tissue maintenance and repair?

    -Growth hormone enhances the transport of amino acids into cells and turns on genes that cause proteins to be synthesized in greater amounts. This allows cells to build more proteins that make up tissues.

  • What are some of the metabolic effects of growth hormone?

    -Growth hormone enhances fat utilization by mobilizing fatty acids from fat storage. This increases circulating fatty acids that can be used for energy. It also causes an overall increase in lean body mass.

  • Why is the first 1-2 hours of deep sleep important?

    -The first 1-2 hours of deep sleep causes a large spike in growth hormone release. This works with other recovery processes during sleep to stimulate tissue repair throughout the body.

  • How can missing the first deep sleep cycle impact growth hormone release?

    -Even if you get enough total sleep, missing the first deep sleep cycle due to an inconsistent sleep routine can result in a diminished growth hormone release.

  • Why is sleep consistency important?

    -Going to bed and waking up at consistent times helps regulate your circadian rhythm and prime your body for processes like growth hormone release to occur at the right time.

  • How does growth hormone stimulate bone and cartilage growth?

    -Growth hormone is essential for normal childhood growth and development. A deficiency can inhibit skeleton growth, while too much can cause gigantism and abnormal height.

  • What is the role of the hypothalamus in growth hormone release?

    -The hypothalamus regulates homeostasis and circadian rhythms. It signals the pituitary gland to release more growth hormone in response to conditions like fasting, stress, or exercise.

  • Can taking supplemental growth hormone be beneficial?

    -While some fitness communities use injectable growth hormone to aid muscle growth, optimizing natural release through lifestyle factors like sleep is a safer recommendation.

  • What lifestyle habit was recommended to help growth hormone release?

    -Avoiding food intake in the 2-3 hours before bed was recommended to help optimize the natural spike of growth hormone during early sleep cycles.

Outlines

00:00

🤔 Intro to Sleep, Growth Hormone and Recovery

The first paragraph introduces the importance of sleep for physical and cognitive performance and overall health. It states that sleep is critical for recovery from exercise due to the spike in human growth hormone (HGH) release during proper sleep. The section then previews discussing the effects of HGH on the body, recovery, and sleep protocols to improve sleep quality and HGH release.

05:02

👨‍⚕️ How HGH Helps Recovery and Metabolism

The second paragraph provides more detail on how HGH promotes tissue growth, maintenance and repair. It enhances protein synthesis for building tissues, and mobilizes fatty acids for increased energy utilization. This builds lean body mass, benefiting fitness, muscle growth and body composition. Some clinicians even use HGH to aid patient recovery.

10:03

😴 Importance of Consistent Sleep for HGH Release

The third paragraph stresses the importance of consistent sleep timing for optimal HGH release. Even if total sleep duration is adequate, varying bedtime can diminish the HGH spike during the first 1-2 hours of deep sleep. Hence maintaining fixed sleep and wake times regulates the circadian rhythm and HGH release critical for recovery and restorative sleep processes.

Mindmap

Keywords

💡growth hormone

Growth hormone is a key hormone released from the pituitary gland that promotes growth and development. It spikes during deep sleep, which helps repair tissues and build lean muscle mass. Optimizing growth hormone levels through healthy sleep habits is a major theme of the video.

💡tissue repair

Growth hormone stimulates tissue repair throughout the body by enhancing protein synthesis. This relates to the video's discussion of using sleep to recover from exercise and injury.

💡protein synthesis

Growth hormone increases protein synthesis, which is the process of building proteins from amino acids. This allows tissues like muscle to repair and grow. The video links protein synthesis to growth hormone release during sleep.

💡deep sleep

Deep sleep refers to stage 3 non-REM sleep. Growth hormone spikes during the first 1-2 hours of deep sleep. Missing this phase by altering sleep schedules can negatively impact growth hormone levels and tissue repair.

💡circadian rhythm

Your circadian rhythm regulates your sleep-wake cycle and influences hormone release. The video emphasizes keeping a consistent sleep schedule aligned with your circadian rhythm to optimize growth hormone spikes.

💡lean body mass

Growth hormone increases lean body mass, which is your total body weight minus fat weight. This relates to the video's discussion of growth hormone's metabolic and muscle-building effects.

💡recovery

The video focuses on using sleep and the growth hormone spike during deep sleep to recovery from exercise, injury, and daily wakefulness. This spike complements other recovery processes during sleep.

💡pituitary gland

The pituitary gland releases growth hormone and is regulated by signals from the hypothalamus. The video discusses how stimuli like exercise and sleep signals from the hypothalamus prompt growth hormone release.

💡fitness

Releasing growth hormone through sleep assists muscle recovery from exercise. The video relates optimizing growth hormone levels to fitness goals like building muscle.

💡sleep quality

Getting quality sleep, aligned with one's circadian rhythm, allows the proper spike in growth hormone during deep sleep early in the night. This in turn assists recovery processes.

Highlights

Sleep is very important for cognitive and physical performance, productivity, and overall health.

Growth hormone promotes growth of nearly all body tissues including bone, essential for development and tissue maintenance.

Growth hormone enhances transport of amino acids and protein synthesis for tissue repair.

Growth hormone increases fat utilization and lean body mass, beneficial for fitness.

Proper sleep habits help optimize natural growth hormone release.

Sleep doctor home sleep test accurately measures sleep metrics to diagnose issues.

Growth hormone released in pulses, with spikes during deep sleep and after exercise.

Hypothalamus signals pituitary gland to release more growth hormone during stress.

Missing early deep sleep reduces growth hormone spike needed for repair.

Consistent sleep routine optimizes growth hormone release from body clock.

Avoid eating before bed to improve sleep quality and growth hormone release.

Occasional bedtime changes are ok, but erratic sleep harms hormone release.

Body adjusts to new sleep routine over time, preserving growth hormone release.

Growth hormone stimulates protein synthesis for tissue growth and repair.

Great sleep essential for many restorative processes including growth hormone.

Transcripts

play00:00

you are looking at A sagittal section

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through the brain and viewing some very

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important structures that are going to

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relate to sleep recovery and the release

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of an important hormone and I think we

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can all agree that sleep is very

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important even mild sleep deprivation

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over a few days can impact cognitive and

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physical performance productivity and

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the overall health of a person and the

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more physically active you are through

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Sports and exercise you could make the

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argument that sleep becomes an even more

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important part of your recovery process

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and one of the reasons why sleep is so

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so important for your recovery is that

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when one is following proper sleep

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habits there's a spike in a hormone

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called human growth hormone or HGH so

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we're going to talk about some of the

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incredible effects that this hormone has

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on the body and your recovery not only

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recovery from exercise but even from

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injury and also discuss some important

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sleep protocols and habits that you can

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deploy in your life to help you improve

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your sleep and the release of growth

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hormone growth hormone is released from

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this amazing gland called the pituitary

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gland the pituitary gland is located at

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the base of your brain and I'd often

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tell students if you went straight back

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from about the bridge of your nose you'd

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eventually run into this gland the

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pituitary gland secretes growth hormone

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into the bloodstream where it can then

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circulate throughout the entire body

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which is important because growth

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hormone promotes the growth of nearly

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all body tissues including bone so this

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means it is essential for normal growth

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and development throughout childhood and

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adolescence and as I just hinted is very

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well known for its effects on cartilage

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and bone growth so any deficiency in

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this could inhibit the growth of the

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skeleton or if you had way too much of

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this during the growth years someone

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could grow to be as much as 8 ft tall

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and this condition is called

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gigantism growth hormone is not only

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essential for normal growth and

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development but it is also important for

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adults as it stimulates tissue

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maintenance and repair and even has some

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powerful metabolic effects and I want

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you to go a little bit deeper with me on

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how growth hormone actually helps with

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tissue maintenance and repair and how it

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exerts these metabolic effects a huge

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part of tissue maintenance and repair is

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about proteins proteins are major

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building blocks that provide structure

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for our tissues think tendons ligaments

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other connective tissues and of course

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proteins are a huge component of muscle

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tissue and at the cellular level growth

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hormone enhances the transport of amino

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acids the building block of proteins

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into the cells as well as turns on genes

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that cause proteins to be synthesized in

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Greater amounts so if I've got more

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amino acids to work with inside the cell

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and I have the genes turned on to

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utilize these amino acids to build more

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proteins then the cells can deposit new

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proteins into the tissues and this helps

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to explain how growth hormone gets

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involved in tissue maintenance and

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repair and why optimizing growth hormone

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release could be beneficial for

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recovering from exercise and even

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injuries and this has also even led many

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clinici Ians like orthopedic surgeons to

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utilize growth hormone with their

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patients to help speed up recovery from

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certain surgeries but what about the

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metabolic effects of growth hormone well

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growth hormone also enhances fat

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utilization and it does this by causing

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fatty acids to be mobilized or pulled

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from fat storage which would then

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increase the amount of fatty acids

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circulating in the bloodstream and these

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fatty acids could then be utilized and

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burned as energy and so the ability of

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growth hormone to both promote fat

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utilization and increased protein

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synthesis in connective tissues and

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muscles causes an overall increase in

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lean body mass which is another reason

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why proper levels of growth hormone can

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be beneficial for Fitness muscle growth

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and body composition and even why some

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of the fitness and bodybuilding world

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may try to even take exogenous growth

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hormone in the form of an injection and

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let me be clear that's not what I'm

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recommending here because we want to

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focus on optimizing the natural release

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of growth hormone and this is where we

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start getting into our discussion about

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how proper sleep habits can help us to

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do this unfortunately not everyone gets

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a good night's sleep some people still

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feel fatigued even after getting what

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they thought was a full night's sleep

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others wake up with dry mouth or a sore

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throat and some even have interruptions

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in their breathing throughout the night

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and because of this I want to take a

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second to thank the sponsor of today's

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video sleep doctor the sleep doctor is

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an FDA approved atome sleep test that

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accurately measures key sleep metrics to

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help diagnose the root cause of your

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sleep problems and this this is done

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from the comfort of your own bed helping

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you to avoid spending a night at a sleep

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lab hooked up to various machines in a

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strange bed away from your home that's

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not only uncomfortable but can often be

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expensive so with the Sleep doctor's

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test you get to take the test in your

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own bed for a fraction of the cost and

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starting is easy first you schedule a

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brief video chat with a board certified

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physician to approve your at home sleep

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test then you receive your device in

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about 3 business days the device is also

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very easy to use and Records your

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breathing patterns while you're asleep

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and automatically shares the results

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with the doctor all in one night of

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sleep then after the doctor reviews your

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sleep data you receive a personalized

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sleep report and a therapy

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recommendation depending on the

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diagnosis I think we all have a pretty

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good idea that sleep is very important

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to one's overall health and

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understanding your sleep is one of the

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first steps to improving it so if you're

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experiencing sleep problems and you're

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interested in trying one of these tests

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go to try sleep doctor.com

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to get 50% off your atome sleep test

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that information and the link will also

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be in the description below growth

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hormone is released in pulses increasing

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and decreasing throughout the day and

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you can see this pulsatile pattern with

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the graph but you'll notice on this

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particular graph that there are a few

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larger spikes and what is it counting

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for this well there are a handful of

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things that stimulate the release of

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growth hormone some of these are low

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blood glucose or low concentrations of

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fatty acids in the blood which can occur

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during fasting or starvation it's also

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stimulated by exorcise excise trauma and

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stress and during the first two hours of

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deep sleep and one thing that we didn't

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mention earlier is that the pituitary

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gland that released the growth hormone

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was often referred to as the master

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gland because it doesn't just release

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growth hormone it also releases many

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other hormones that control other

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endocrine glands throughout the body but

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we know that the pituitary gland

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actually has a boss of its own this

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structure above the pituitary gland

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called the hypothalmus and it's

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important that we mention the

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hypothalamus because the hypothalamus is

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one of the body's major Regulators of

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homeostasis and so if the hypothalmus

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gets feedback or signals from the body

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about conditions of fasting or

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starvation emotional stressors physical

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stressors from trauma or physical

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stressors such as exercise it can tell

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the pituitary gland to release more

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growth hormone in response to these

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different conditions and the

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hypothalamus is also involved in

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regulating the body's Circ Cadian

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rhythms the sleep wake cycles and

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therefore tells the pituitary gland to

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release the hormone during a certain

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phase of sleep so coming back to this

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graph that we looked at earlier the

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first large Spike of growth hormone that

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you see was due to a strenuous exercise

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session and then the second large Spike

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occurred during sleep specifically the

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first 1 to two hours of deep sleep so as

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you can see this first 1 to two hours of

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deep sleep is very important for this

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spike in growth hormone because if you

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get this bike or this extra Bolis of

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growth hormone this can work in

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conjunction with some of the other

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recovery processes that occur during

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sleep to help stimulate tissue repair

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and various structures throughout the

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body including the repair and building

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of skeletal muscles not only can you

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look at this from the perspective of

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exercise and tissue recovery but this is

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also important for protein synthesis

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that occurs in our neurons like when you

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are developing memories and organizing

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information that you learn throughout

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the day this Spike of growth hormone

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also Al helps with this process so if

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you miss this first deep sleep cycle you

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also can miss this big spike and growth

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hormone but you might be thinking wait a

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minute if this happens during the first

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two hours of sleep how could I miss this

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if I get at least the first two hours of

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sleep wouldn't I still get the spike

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well this is where the Arcadian Rhythm

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matters you develop this Arcadian clock

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this sleep wake cycle and you could

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think of it as if the cells of the body

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have the specific clock or schedule that

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they are adhering to and are ready and

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primed for certain things to occur

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during the different phases of sleep one

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of those being this larger release of

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growth hormone during those first one to

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2 hours so let's say you normally went

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to bed at 10: p.m. every night but then

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the next one or two nights you went to

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bed at 11:30 or even later it has been

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shown that you will miss or have a

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diminished release of the growth hormone

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due to this abrupt change in your sleep

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routine even if you got the same total

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number of hours of sleep it's almost as

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if the body is saying oh I missed my

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regularly scheduled release of growth

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hormone and then moves on with the Sleep

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phases and so this is one of the main

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reasons why sleep consistency is so

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important for growth hormone recovery

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and many other restorative processes

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that occur during sleep so one of the

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habits you want to develop is going to

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bed and waking up at the same time every

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day which helps regulate your body's

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internal clock promotes better sleep

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quality and obviously helps to optimize

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this nightly release of growth hormone

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and I do think it's worth noting that

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occasional deviations in your exact

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bedtime are not going to be the end of

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the world but if you constantly have

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this erratic sleep schedule over time

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this would not be ideal for growth

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hormone and again many of the other

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restorative processes that occur during

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sleep and obviously your body can make

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adjustments to this meaning if you

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normally went to bed from like 10:30

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p.m. to 7:30 a.m. and maybe you got a

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new job that required you to get up

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earlier and you changed your sleep

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schedule from 9:00 p.m. to 5:00 a.m. or

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maybe you move to a different time zone

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your body with a little bit of time

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would adjust to this assuming you were

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moving into another consistent sleep

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routine and another little tip that you

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could try is to avoid eating 2 to 3

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hours before bed as there is some data

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that is starting to show that this can

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also be helpful to the release of growth

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hormone that is coming during that first

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one to two hours and can just also help

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improve On's overall Sleep Quality if

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you avoid say pounding a big old piece

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of cheesecake right before bed which

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admittedly is one of my major weaknesses

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so hopefully this has been a fun and

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informative topic and we've just

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scratched the surface of one of the many

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reasons why great sleep is so beneficial

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as well as just scratch the surface on

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growth hormone so more to come on both

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of these topics but in the meantime with

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all this talk about how growth hormone

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stimulates protein synthesis you may be

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interested to know how much protein you

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actually need in a day would you can

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check out here in one of our other video

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links right there and of course thanks

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for watching everyone let us know what

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you thought of the video and I'll see

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you soon