General Knowledge - Basic General Knowledge - Discussion

UV rays causes skin cancer also then how can we say that it will help a person to improve his health?

That's correct because of the oil content for vitamin strength that way to help our health.

A division between an area or areas on the skin of a human of pronounced comparative paleness relative to other areas of their body that have been suntanned by prolonged exposure to ultraviolet radiation.

Not only in the morning, in the evening too we make Vitamin D.

In the evening the sun is not present, so how the uv ray is helpfull to our body?

I think UV rays are very harmfull then how can it convert into Vitamin D.

I didn't get a pasitive about it. Please, can anybody explain ?

Can you explain the pimples problem and dark circles.

Friends very less amount of UV-rays doesn't affect our cell tissues. So its better to stand out in morning sunlight.

Dark circles doesn't come through sun light to prevent that you have to sleep properly. Don't allow dusts and oil on your face for long time at-least have to wash our face with cold water 6 times in a day and don't use soap more than twice.

Vitamin D is a fat-soluble vitamin which can provide for the body's needs in one of two ways. Through the action of sunlight on the skin, or through the major food sources of cod liver oil, cold-water fish, butter, and egg yolks. When the sun shines on the skin, the ultraviolet rays activate a form of cholesterol which is present in the skin, converting it to Vitamin D (1). Because the body can provide sufficient Vitamin D to meet its needs simply through exposure to sunlight, some feel it is not really a vitamin, but instead is a hormone.