Researchers followed more than 400,000 teens until they were adults. It found that those who used marijuana were more likely ...
A closely watched clinical trial in Britain that screened blood for early detection of cancer did not show a reduction in ...
The study found that a combination of exercise, healthy diet and other behaviors led to cognitive benefits. How much intense guidance is required was unclear, experts said. By Pam Belluck Pam Belluck ...
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