ยากันแดด เลือกผิดชีวิตเปลี่ยน ซึมเข้ากระแสเลือด กดฮอร์โมน ไตมีปัญหา #sunscreen

Summary

This video script discusses the importance of choosing the right sunscreen, highlighting the potential dangers of certain chemicals in sunscreens that can be absorbed into the bloodstream and affect health. It differentiates between UVA and UVB rays, explaining the role of SPF and PA ratings in protection. The speaker, Dr. Thanit Thannitrairak, a physician from the United States, emphasizes the safety of mineral-based sunscreens over chemical ones, cautioning against specific ingredients like oxybenzone and paraben. He also addresses the environmental impact of sunscreens on marine life and provides practical advice on safe and effective sun protection.

Takeaways

• 😀 Sunscreen creams are designed to protect against harmful UV rays which can cause skin damage, aging, and skin cancer.
• 🌞 There are three types of UV rays: UVA, UVB, and UVC. UVA and UVB are the ones that affect our skin, while UVC is mostly blocked by the Earth's atmosphere.
• ☂️ UVA rays penetrate deeper into the skin, causing aging and darkening, whereas UVB rays are responsible for sunburns and can also lead to skin cancer.
• 🧴 Sunscreen labels with 'SPF' indicate the level of protection against UVB rays. SPF 50 blocks about 98% of UVB rays, and SPF 100 blocks about 99%, suggesting that higher SPF values offer diminishing returns.
• 🛡️ 'PA' ratings on sunscreens refer to the protection against UVA rays, with higher plus signs indicating better protection.
• 🚫 Some chemical compounds in sunscreens, like oxybenzone and parabens, can be absorbed into the bloodstream and may have potential health risks.
• 👶 Children's skin is more sensitive, so it's crucial to choose sunscreens carefully, avoiding those with potentially harmful chemicals.
• 🤰 Pregnant women should be cautious with sunscreen ingredients, as some chemicals can potentially pass into breast milk and affect the baby.
• 🏊 Water-resistant sunscreens are designed to last for about 40-80 minutes in water, after which they may need to be reapplied.
• 🌍 The environmental impact of certain sunscreen chemicals on marine life is a concern, especially in areas with coral reefs and sensitive ecosystems.

Q & A

What is the primary purpose of sunscreen?

The primary purpose of sunscreen is to protect the skin from sunburn, which is caused by excessive exposure to the sun's ultraviolet (UV) radiation.

What are the different types of UV rays mentioned in the script?

The script mentions three types of UV rays: UVA, UVB, and UVC. UVA has the longest wavelength and can penetrate the deepest into the skin, while UVB is responsible for sunburn and can cause skin cancer. UVC is the most dangerous but is mostly absorbed by the Earth's atmosphere.

Why is it important to protect against both UVA and UVB rays?

Both UVA and UVB rays can cause skin damage. UVA rays can lead to premature aging and skin darkening, while UVB rays can cause sunburn and increase the risk of skin cancer. Therefore, it's important to protect against both types to maintain skin health.

What does SPF stand for and what does it measure?

SPF stands for Sun Protection Factor. It measures a sunscreen's ability to protect against UVB rays, which are primarily responsible for sunburn.

What is the significance of the difference between mineral and chemical sunscreens?

Mineral sunscreens contain physical blockers like zinc oxide and titanium dioxide that sit on the skin's surface and reflect UV rays. Chemical sunscreens contain ingredients that absorb UV rays. Mineral sunscreens are generally considered safer and less likely to cause allergic reactions.

Why might some people prefer mineral sunscreens over chemical sunscreens?

Some people prefer mineral sunscreens because they are less likely to cause skin irritation or allergies, and they provide broad-spectrum protection without the need for frequent reapplication.

What are some potential health concerns associated with chemical sunscreen ingredients?

Some chemical sunscreen ingredients can be absorbed into the bloodstream and may have potential health effects, including hormonal disruption or potential impacts on the reproductive system. However, more research is needed to fully understand these risks.

What is the role of the FDA in regulating sunscreen ingredients?

The FDA regulates sunscreen ingredients to ensure they are safe and effective. It has approved certain ingredients for use in sunscreens and continues to evaluate new research on their safety.

Why is it recommended to avoid certain sunscreen ingredients during pregnancy or breastfeeding?

Certain sunscreen ingredients may be absorbed into the body and could potentially affect the developing fetus or be passed to the baby through breast milk. To be cautious, it is recommended to avoid these ingredients during pregnancy or breastfeeding.

What is the importance of considering the environmental impact when choosing a sunscreen?

Some sunscreen ingredients, particularly those in chemical sunscreens, can be harmful to marine life. It's important to consider the environmental impact and choose sunscreens that are safe for both human health and the environment.