Як сильно ми старіємо від сонця? Розбирає біолог.

In this issue, we’ll look at why the sun is one of the main factors in premature skin aging. We’ll talk about how UV damage DNA, trigger oxidative stress, and form wrinkles, why tanning is actually a protective reaction of the body, not a sign of health, and what modern science knows about photoaging. We’ll take a look at twin studies, the phenomenon of one-sided skin aging, the risks of tanning beds, the connection between UV and skin cancer, and the most common myths about the sun, SPF, and “dangerous chemicals.” We’ll look at what SPF and the numbers on the packaging mean, how UVA and UVB rays differ, how much sunscreen you should apply, whether it really needs to be reapplied every two hours, how physical and chemical filters work, whether there’s a fundamental difference between cheap and expensive products, and how to choose sunscreen that really works. And I did a detailed review of chemical, physical and new generation filters in my guide with an analysis of 50+ SPF products: https://secure.wayforpay.com/payment/... My name is Oleksandr Kolyada, I am a Ph.D., biologist and aging researcher. Here I share knowledge and the latest research on the scientific approach to health, and what is behind the aging processes. And also, together with you and the guests of my podcasts, I explore the topic of science and health. Follow me: My Instagram -   / alexander_koliada   (write the word SUN to me in direct to get details about the SPF guide) Telegram channel - https://t.me/alex_koliada My TikTok -   / alex.koliada   #AlexanderKolyada #Science #kolyada #medicine #longevity #genetics #aging 00:00 Research on skin aging, unilateral dermatogeliosis 02:10 How does human skin age? 02:45 SPF - a remedy for skin aging 03:09 How does ultraviolet damage the skin? What types of ultraviolet are there? 03:58 Skin damage - makes changes to DNA 04:35 Ultraviolet and oxidative stress 05:06 Tanning - is it healthy or a protective reaction? 06:02 Aging Study on Identical Twins 06:39 What is Photoaging? 07:15 The Only Anti-Aging Skin Solution 08:11 How Does the Sun Affect Wrinkles and Aging? 08:41 Evolution and Premature Aging of the Skin 09:12 Were the First Britons Dark-Skinned? 09:49 Most Cancers Occur After 40 11:15 Is the Sun Our Enemy? 11:50 Skin Cancer - The Most Common Skin Cancer 12:48 Are Tanning Beds Carcinogenic and Harmful? There Is No Safe Tanning Bed 13:45 Myths About Sunscreen (SPF) 14:30 Are All Chemicals Harmful? 15:18 The Sun is a Carcinogen 15:38 Conspiracy Theories About SPF 16:19 Australia and Skin Cancer 17:38 Research on Sunscreens and Skin Cancer 19:10 SPF is not the first line of defense. Which sunscreen is the best? 20:13 A useful life hack against the sun 21:12 Why are we drawn to the sun? A study of tanning cravings and addiction 22:28 What is SPF? What do the numbers on the SPF bottle mean? 23:52 How to protect yourself from ultraviolet A? 24:15 How much SPF should you apply? 25:35 Which is better, cheap or expensive SPF? 26:52 Do you need to update your SPF every 2 hours? 27:22 How to apply SPF? 28:04 Can you trust the numbers on the SPF bottle? 29:30 How is SPF production tested and regulated? 30:12 Which SPF products provide the best protection? How do SPF filters work? 31:03 How to choose an SPF product? Which filter should I choose, chemical or physical? 32:28 How do chemical filters work? 32:48 What are the potential risks of SPF? 34:23 The new generation of filters? Modern SPF filters 36:04 The sun and skin aging, conclusions