Space aging

People have been talking about terraforming and colonizing Mars since the beginning of space travel, and in the past few years that ambition seems to have gone mainstream. But if we want to conquer the “final frontier” of space, we must first confront that other final frontier. Because, as it turns out, the problem with…

Glucosamine: The new metformin? | Interview with Dr. Michael Ristow (part ii)

Last week when we heard from Dr. Ristow, he turned the outdated notion of the “free radical theory of aging” on its head, and demonstrated that antioxidants like vitamin A and vitamin C aren’t all they’re cracked up to be. But if those supplements can’t help us, what can? Perhaps, says Ristow, the answer can…

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…

FOXO vs. a harbinger of neurodegeneration

Long before the usual physiological signs, the withering of neurons and the gradual atrophy of the brain, that tip doctors off to the presence of a neurodegenerative disease, there’s already something different about their patients’ brain cells. Action potentials flash across a long, thin arm protruding from the cell body in a healthy neuron, and…

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