Free radicals are not your enemy | An interview with Dr. Michael Ristow (part i)

Dr. Michael Ristow, a professor of energy metabolism at ETH Zurich, bases much of his research into aging on a premise that many of us will find surprising: the free radicals that our cells produce while making energy are not only not harmful, but can even slow the body’s aging down. But while that might…

Oxidative stress response: One of the many jobs of tumor-suppressor p53

At its most dramatic, oxidative stress can rend DNA in two and predispose cells to mutations that ultimately result in cancer. But the less bombastic effects of reactive oxygen molecules are no less damaging, as they likely play a central role in the world’s number one killer, vascular disease, causing stroke and heart attack among

What’s eating you?

Many people think of sleep almost as if it were a state of suspended animation, like turning off a computer so that it can cool down. But while your conscious mind and certain activities are dormant, much of your body is hard at work repairing damage, replenishing energy stores, and clearing away waste, in addition…

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