Dr. Denham Harman 98, a legendary figure in science for his 1954 proposal of the Free Radical Theory of Aging, died Tuesday at Lakeside Hospital after a brief illness. He was 98. Harman served on the ...

The free radical theory of aging is back in play after falling out of favor decades ago. (Remember when people were taking massive doses of various vitamins and minerals? Mopping up free radicals with ...

Two oxygen atoms were walking along the street when one stops and says, “Oh my goodness, I feel more radical. I think I've lost an electron!” “Are you sure?” asks his companion. "Yes," replies the ...

A genetic study of worms has challenged the prevailing theory of aging, which holds that organisms eventually break down and die as a result of wear-and tear on their bodies. Researchers have found ...

A new study suggests that unrepaired DNA damage can increase the speed of aging. Every day, our bodies face a bombardment of UV rays, ozone, cigarette smoke, industrial chemicals and other hazards.

You may have heard that antioxidants are an important part of your diet – but what are they and what do they do? Generally, antioxidants balance out something called oxidants or free radicals, which ...