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The sun: essential for life on earth
Life as we know it would not be possible without the heat and light of the sun. |  | Your body needs the sun
To ancient sun-worshippers, the sudden disappearance of their god during daylight hours was a terrifying thing. But what would happen to your body if the sun stayed hidden? | | The sun and vitamin D
Most of the vitamin D your body uses is made under your skin when you’re exposed to the sun, but you also get it from food. | | Vitamin D and cancer
According to news reports, vitamin D could help prevent colon cancer. But excessive intakes of vitamin D could also be dangerous. Read DietDoc's comments on this hot topic. | | Vit. D could protect the heart
A while ago, researchers identified a role for vitamin D in cancer prevention. Now, there are indications that vitamin D may also thwart heart disease, hypertension and stroke. |
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