Drinking tea provides a good source of L-theanine. This unique compound may promote sleep quality and help alleviate stress. Read on to learn about L-theanine’s benefits and safety profile, how it works, and the doses needed to provide an effect.
Research shows that tryptophan may improve sleep quality among those with genetic variations in the serotonin transporter gene. Read more to discover which genetic variants responded best to tryptophan supplementation.
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