Many people around the world feel lonely. Chronic loneliness is known to have far-reaching health effects and has been linked to multiple conditions and even early death. But the mechanisms through which feeling alone can lead to poor health is a puzzle. Now, researchers are looking at neurons in the hopes that they may help explain why health issues arise when social needs go unmet.

This is an audio version of our Feature Why loneliness is bad for your health

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276. No Hollywood Ending for the Visual-Effects Industry