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Health & Medicine

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Paola Arlotta.

Rewinding the brain

In the glimpse of the past provided by organoids, Paola Arlotta sees a chance to shape the future of how we fight neurological disease


A fentanyl user holds a needle.

A nation nearer to the grave

Another decline in U.S. life expectancy signals urgent need for more comprehensive strategy against opioids, suicide, specialist says


Massive plume from the Camp Fire wafts over the Sacramento Valley.

Breathing uneasily

As California fights devastating Camp Fire, Harvard’s Joe Allen explains when and where smoke threatens health