General Knowledge - Basic General Knowledge - Discussion
Discussion Forum : Basic General Knowledge - Section 1 (Q.No. 13)
13.
Exposure to sunlight helps a person improve his health because
Discussion:
90 comments Page 2 of 9.
ANKIT DWIVEDI said:
1 decade ago
If you will read deeply about ultraviolet radiations. Then you will found that only harmful radiations are harmfull for our body. Actualy ultraviloet radiations are of two types. And their harmfullness depends on their intensity and frquency. So only harful radiations of that are absorbes by ozone layer. And reaching part of it convert oil of skin into vitamin D.
LINGESHA said:
1 decade ago
I'm also not confirm in this. After reading these informations I come to the following decision.
There are two types of UV rays. And it depends on the uv rays intensity and frequncy. But very harmful UV radiations are absorbed by ozone layer. And transferred radiations may convert that skin oil into vitamin D on the human body.
There are two types of UV rays. And it depends on the uv rays intensity and frequncy. But very harmful UV radiations are absorbed by ozone layer. And transferred radiations may convert that skin oil into vitamin D on the human body.
Ganesh said:
6 years ago
Our body is able to produce its own vitamin D3 when your skin is exposed to the sun's ultraviolet rays, specifically ultraviolet (UVB) radiation. When UVB rays hit your skin, a chemical reaction happens: our body begins the process of converting a prohormone in the skin into vitamin D.
(1)
Gargi said:
1 decade ago
UV rays are not responsible fo vitamin d, the sunlight which we get in morning from 8 to 10 am gives the vitamin d and it keeps us away from skin diseases, the sunlight from 11 to 3 pm is very harmful to skin, we should avoid the exposure of our skin in this duration.
Alkshendra said:
1 decade ago
Ozone layer protect us from the uv rays but in that days in many area like africa, west indies and many other places a hole is found in ozone layer it is affected by air of freeze, by our toothpaste, green house effect and by chlorofluorocarbon are responsible for it.
Uthkar sailu said:
1 decade ago
Our bodies manufacture vitamin D when the sun's ultraviolet B (UVB) rays interact with 7-dehydrocholesterol (7-DHC) present in the skin.
"However, we can produce only a limited amount of vitamin D from UVB. A few minutes at midday are sufficient for many Caucasian".
"However, we can produce only a limited amount of vitamin D from UVB. A few minutes at midday are sufficient for many Caucasian".
Dipika singh said:
1 decade ago
@ arun.
It depends on the frequency of uv rays we are facing, the uv rays which is harmful for us, is absorbed by ozone layer, but as we know, now due to hole in our ozone layer, we have to face the, hazardous effect of it, ie, cancer, as you are saying.
It depends on the frequency of uv rays we are facing, the uv rays which is harmful for us, is absorbed by ozone layer, but as we know, now due to hole in our ozone layer, we have to face the, hazardous effect of it, ie, cancer, as you are saying.
Ravi said:
1 decade ago
Ozone layer is the protective layer. Its chemical composition is O3. It absorb ultra violet ray, which is very harmful for us. But now a day, due to heavy pollution layer become destroy. The main harmful gass is carbon-mono-oxide, chloro-fluro-carbon.
Jeevan said:
1 decade ago
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.
Hiya Singh said:
6 years ago
Triggers vitamin D " UV from the Sun is needed by our bodies to produce vitamin D. Vitamin D helps strengthen bones, muscles and the body's immune system. It may also lower the risk of getting some kinds of cancers such as colon cancer.
(1)
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