In today's high-paced society, L-theanine has a crucial role to play in the clinical management of stress, relaxation, cognition and sleep.
Gamma-aminobutyric acid (GABA) is widely distributed throughout the central nervous system (CNS) and is the major inhibitory neurotransmitter in the brain. Reduced GABA levels, or impaired GABA function, in the brain has been linked to psychiatric and neurological disorders including anxiety, depression, insomnia and epilepsy.
A cup of tea is often associated with a sense of calm. L-theanine, a unique free amino acid naturally present in tea (Camellia sinensis), is likely the compound contributing most significantly to this.
A randomised, double-blind, placebo-controlled study was conducted to evaluate the efficacy of an extract of holy basil in the symptomatic control of general stress.
