Brain chemicals help worms live long and prosper

Serotonin and dopamine accompany life span extension in nematodes on a diet

By Laura Sanders, 14:31 PM March 11, 2014

The fabled elixir of life delivers eternal youth free from the bodily indignities that come with age. In reality, worms on a restricted diet also live long, healthy lives, thanks to high levels of certain neural chemicals, a new study suggests.

Unlike their normal counterparts, worms on a diet maintain high levels of serotonin and dopamine as they get older, scientists report in the March 12 Journal of Neuroscience. But calorie restriction wasn’t necessary to get some benefits: Extra serotonin...

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