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Health & Medicine

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Kittens in the wild.

Birth control for cats?

Single dose of hormone prevents ovulation and conception in felines for two years


Fangyun Tian.

The brain on ketamine

It’s a powerful antidepressant, but science needs more answers on out-of-body experiences and other ‘dissociative effects’


Anatomical illustration of a human liver.

Who deserves a liver transplant?

With deaths from alcohol-related disease on rise, some in the field are rethinking criteria that exclude patients from life-saving care


Collage of people walking and heart health.

Faster, fitter?

Not really, says Spaulding Rehab expert. When you go for a walk, focus on this instead.