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L-Theanine & Relaxation
07/15/2024

Green tea, a known producer of L-theanine, has been found to be effective on the brain waves, helping increase relaxation and overall lowering stress levels... but how does the science stand up when this compound is taken out and administered?

This study looked at both rats and humans, and explored the link between L-theanine, brain waves, and stress.

Initially administered to rats, this study scanned brain waves on the surface of the rats brains to see the effect that concentrated L-theanine had. They found that alpha waves increased. The study was then taken to human volunteers, "In human volunteers, α-waves were generated on the occipital and parietal regions of the brain surface within 40 min after the oral administration of L-theanine (50–200 mg), signifying relaxation without causing drowsiness."

This study shows that this is a safe, non-hormonal option for people who are looking to increase calm without increasing fatigue/drowsiness!

View the whole study here.

https://www.sciencedirect.com/science/article/abs/pii/S0924224499000448