![Serotonin: 5 More Happy-Mood Foods!](https://keepfitkingdom.com/wp-content/uploads/thumbs_dir/Serotonin-5-More-Happy-Mood-Foods-Keep-Fit-Kingdom-842x472-oy8tgoc6si700fpjrzb4awkhmtacb8d1z3igm8ahls.jpg)
Serotonin is a naturally secreted substance that operates as a neurotransmitter to transport signals between nerve cells everywhere within your body. Often, people only associate its levels with positive changes in mood, however neurotransmitters play a vital role in the health of various other ...
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