If 90% of skin aging is from sun exposure, why do lifelong indoor workers or cloistered nuns still get wrinkles and look old?

[Anonymous]

[Stevepro68]

Well understand the human body and aging is all genetics injury and lifestyle. For a visual analogy our skin can be represented as a car on a hill. Over the course of our lives we go down the hill. This car has no brakes and no reverse. But there are accelerators. For skin accelerators include, chemical exposure particularly tobacco smoke. sunlight exposure, and burn injuries to name the most common. So you see some people have a steep slope to the hill and some have a gentle slope to the hill. That's the genetics. Sunlight is important. But not the only accelerator. So it can't possibly be 90% of aging. That say in medicine you have to see a lot of old people bottoms. For that individual it is always the least wrinkled and aged structures on their skin even better than the feet. It seems the least sun and more than likely the least tobacco smoke exposures. So pretty persuasive anecdotal evidence that the sun is a large factor. But nuns aren't born nuns and they sure as heck smoke. So you can see it all makes sense.

[Shiprex]

It's not ONLY from the sun, the sun accelerates it. It's as much to do with diet, dryness of indoors conditions and exposure to air conditioning that will make it worse

[Asker]

But if it will only be 10 percent then why do a lot of them look extremely old

[Asker]

Forgot to add question mark at the end

[Shiprex]

Dryness indoors and the sun also provides UV radiation that the skin uses to protect itself and LACK of sunlight is also bad for it.

[Genie23]

Because aging/getting wrinkles is inevitable. Sun exposure isn't the only thing that causes wrinkles and make people appear old. There are other factors too.

[ChicoFromThe305]

Actually if I'm not mistaken aging isn't a sun exposure issue, it's actually just a thing that happens when something is exposed to air for too long, so it's more than likely oxygen is your culprit, best of luck avoiding that one 💀

[jahaims]

Because what you said isn't true lol

[CupcakeTheDestroyer]

Oxidization

[bowenw]

Gravity.