posted on Jun, 20 2014 @ 01:09 PM
a reply to: Thecakeisalie
Being over, or under exposed to sunlight is very bad for ones health. The levels which an individual requires, the amount of sunlight exposure an
individual can benefit from, are just that, individual. The combination of ones skin tone, genetic heritage and a whole host of other factors play in
to how well one deals with high exposure to the sun.
For example, I have very light skin, and a family history on my fathers side, of propensity toward melanoma. Therefore, I go out in the sun very
little compared with most folk, and when I do, I wear a high factor sunblock, and reapply it every half hour at least.
There are people out there who have even greater weakness to the negative effects of sunlight. Sufferers of a condition called xeroderma pigmentosum,
have a genetic mutation which affects the pigments in their skin. It prevents damage caused by ultraviolet light from being repaired. In the most
serious cases, sufferers can never allow themselves to be exposed to ultraviolet light, since all UV absorbed by the skin has a cumulative effect, as
opposed to in normal circumstances, where the skin repairs itself. Sufferers of this condition therefore, are extremely prone to a whole heap of
cancer risks, after infinitesimal exposure to the sun.
There are also people who require more sunlight than others, people who have vitamin D deficiencies, people who do not have good circulation (who
need to be warm more than anything else) and a whole plethora of other things that can cause a person to require more light than normal.
The idea that one ought to take heed of any study which fails to take that into account, is frankly idiotic, but I would also say that some people
might be well advised to reduce their exposure to sun light, especially those who like to sunbathe.