You do age faster at higher altitudes.
Evidence suggests that when you live at higher altitudes you age slightly faster at a slightly faster rate of biological aging.
The reason that you age slightly faster at higher altitudes is mainly a result of increased UV radiation exposure and the effects of the lower oxygen levels on your skin and your overall cellular health.
And for every 1,000 feet of elevation gain, UV radiation also increases by around 10 percent to 12 percent.
The increased UV exposure at higher altitudes can accelerate your skin aging by breaking down the collagen and cause pigmentation issues and increase the formation of wrinkles.
Also at higher altitudes, the air is also thinner and oxygen levels are also lower, which can affect your skin health because it reduces oxygenation of skin cells.
And the lower oxygen levels can also hinder the healing process of the skin, reduce the collagen production and also contribute to a dull and tired appearance.
Other factors that cause you to age faster at higher altitudes are lower humidity at higher altitudes can exacerbate dryness of the skin and dehydration and contribute further to premature aging.
And some research also suggests that living at higher altitudes can also be associated with lower rates of metabolic diseases, as it appears that the accelerated aging effects of UV and oxygen levels are much more significant when it comes to the visible signs of aging.