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A suntan is the result of your body trying to minimize the impact of excessive exposure to UVA and UVB rays. Believe it or not, black people and white people have the same number of melanocytes (skin pigment generating cells). When exposed to UV light, the cells do not increase production, but another type of cell (the melanosome) reduces the rate at which it destroys melanin. By increasing the deposition of melanin (or, more acurately, decrease the rate of melanin metabolization), the body can "absorb" a certain amount of UV light. A "tan" is simply your bodies way of saying it's near capacity for UV light. A sunburn will surely follow, which is nothing more (or less) than a burn caused by radioactive material.
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How does sun effect the human body?
well sun is healthy for your body. but to much sun is not because see the sun is hot and when you burn your self your skin turns red, buy the sun you turn red that's called a sun burn, but its healthy but its not great when you get skin cancer :( hope this helps
Can you tan using hot water?
No. Heat from the sun is not what causes tan it is the ultraviolet rays similar to the rays that cause skin cancer. The reason heat is asoociated with them is that usually when the sun is bright enough that the UV rays are causing a tan infrared rays are also causing you to feel hot. This is why a bright sun on a cool day is very dangerous. The UV rays are still reaching the skin but as they are undetectable and there is no heat warning the skin that the sun is bright you are more likely to allow yourself to stay in the sun too long and burn.No.
What is melanin and why is it important?
Melanin is a pigment that gives skin its color and is released when sun touches the skin :)
How does skin grow back?
It grows back with vegetables and fruits and sun.
Human skin color is the result of?
In very sunny climates like Africa the skin is at great risk of danage from UV light which can cause melonomas. The reason skin darkens in temporary sun (sun tan) is that extra melanin is produced in the top most layers of the skin to pretect the deeper layers by blocking the sun light. Human beings started out all having very dark skin as they came from Africa where the sun is very bright. As they moved away from Africa to duller areas (Europe) they evolved not to produce this much melanin as it was unnecessary and used a lot of energy and raw materials to produce. some peopel still have very dark skin as they still live in very sunny parts of the world where it is still needed.
Can permanently damage skin?
There are many things that can damage skin. Some of them are surprising. Excess exposure to chlorine can damage skin. A lot of ingredients in make up can be damaging to skin as well as spending too much time in the sun.
Bad advantages about spending time in the sun?
it gives u skin cancer and makes u look older
What are the benefits of sunless tanning?
Sunless tanning is much better than being in the sun all the time. The sun will age your skin dramatically and there is a risk of skin cancer.
What can happen if you spend to long in the sun?
Well, spending time in the sun isn't particularly reccomended. due to the several million degrees of heat. so basically spending any time in the sun will cause death
What happens to skin from overexposure to the sun?
you get sun-burned, Or you may get skin cancer. No Think scientific
Doctor now say that to much sun shining on your skin is harmful why is this?
because of the rases of sun is to much harm ful for your skin when they enters in your skin they damaged your skin
Disadvantages of spending time in the sun?
The main disadvantage is the higher risk of Skin Cancer. Some people may argue that you can become Vitamin D deficient from under exposure to the sun, however, you receive Vitamin D from your diet and if you're still in need of more you can take Vitamin D tablets.
Should you spend time in the sun - economic issues?
if people stop spending time in the sun then businesses will loose out on money and will go bankrupt
How do you cause damage to your skin?
to much sun
What causes bad skin?
the causes of bad skin vary. For example, tanning, to much time unprotected in the sun, not enought vitamin D and E, and chemicals.
Does cold weather make skin color whiter?
In the winter, people spend more time indoors, and their skin gets lighter because they do not get as much exposure to the sun.
Why is a tattoo permanent and a sun tan not?
because a sun tan only effects the outer surface of the skin. a tattoo is much deeper down so the ink remains in the skin for a much longer period longer, given enoughf time a tattoo will fade as well.
