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How Senescent Cells Spur Aging and Cancer

Cells that permanently stop dividing have long been recognized as one of the body's defenses against cancer. Now they are also seen as a sometime culprit in cancer and a cause of aging

By David Stipp

New Pleasure Circuit Found in the Brain

A new understanding of how the brain generates pleasure could lead to better treatment of addiction and depression—and even to a new science of happiness

By Morten L. Kringelbach and Kent C. Berridge


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