Improves Sleep Quality and Fights Insomnia

With its calming and anti-stress effects, L-theanine can benefit people suffering from sleeping difficulties. Studies show that administration of L-theanine has positive effects on sleep quality and quantity:
1. In patients with attention deficit hyperactivity disorder (ADHD), L-theanine treatment was associated with higher sleep percentage and sleep efficiency scores. [28-29]
2. In patients with schizophrenia, L-theanine treatment for 8 weeks improved sleep quality. [30]
3. In patients with major depressive disorder, L-theanine administration improved scores on Pittsburgh Sleep Quality Index (PSQI). [31]
4. In patients with generalized anxiety disorder, L-theanine treatment was associated with greater self-reported sleep satisfaction. [32]
5. In animal models, L-theanine treatment was associated with improved NREM (non-rapid eye movement) sleep. [33]
6. In rats, L-theanine reversed caffeine-induced sleep disturbances. [34]

before after

At the age of 60, I look and feel better than I ever have in my entire life! Switching my health program and hormone replacement therapy regimen over to Genemedics was one of the best decisions I’ve ever made in my life! Genemedics and Dr George have significantly improved my quality of life and also dramatically improved my overall health. I hav...

- Nick Cassavetes, 60 yrs old

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