2. L-Theanine: The Anxiety-Reducing Amino Acid
Found in green tea, L-Theanine is known for its calming effects without drowsiness. It works by:
Boosting alpha brain waves, which promote relaxation (3).
Lowering cortisol, the stress hormone that keeps you awake (4).
Enhancing GABA, a neurotransmitter that helps quiet an overactive mind (5).