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Blood Hormones and Suicidal Behavior: A meta analysis finds that levels of thyrotropin stimulating hormone (TSH), leptin, and dehydroepiandrosterone sulfate (DHEAS) are related to suicide attempts, whereas progesterone is related to suicidal ideation.

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« ‘Extinct’ Giant Tortoise Was Just Chilling on an Island. A DNA analysis of a tortoise named Fernanda confirms she is closely related to an animal last spotted in the wild in 1906.

A New Technique Finds a Bundle of Brown Dwarfs »