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Description
Effects of l-Theanine on Cognitive Function in Middle-Aged and Older Subjects: A Randomized Placebo-Controlled Study

Richardson PG, Perrot A, SanMiguel J, et al

Cell Tissue Res

young adults

The primary causes include nutrient deficiencies, hormonal imbalances, genetic predispositions, and certain medical conditions such as thyroid disorders

T.KarjalainenE
