The present work aimed to investigate the protective effect of L-theanine on cognitive impairment induced by chronic restraint stress (CRS) in mice. Stress was induced by restraining animals in well-ventilated polypropylene tubes (3.2 cm diameter × 10.5 cm length) for 8 h once daily for 21 consecutive days. L-theanine (2 and 4 mg/kg) was administered…
