L-Theanine is an amino acid commonly found in tea leaves, particularly in green tea. It is known for its potential calming effects and is often used as a natural remedy for anxiety. Research suggests that L-Theanine may indeed help with reducing anxiety and promoting relaxation. Here are some ways in which L-Theanine may work for anxiety:

1. Promoting Relaxation: L-Theanine is believed to promote relaxation without causing drowsiness. It may help increase levels of certain neurotransmitters that promote feelings of calmness and reduce levels of excitatory neurotransmitters associated with stress and anxiety.

2. Modulating Brain Chemistry: L-Theanine increases the brain's production of GABA, serotonin, and dopamine. These neurotransmitters play a key role in regulating mood, emotions, and stress response.

3. Reducing Physiological Signs of Stress: L-Theanine may help reduce heart rate, lower blood pressure, and decrease levels of the stress hormone cortisol, thereby mitigating some of the physical symptoms of anxiety.

4. Improving Cognitive Function: Some studies suggest that L-Theanine can enhance attention and focus, which may be beneficial for individuals experiencing anxiety-related cognitive impairments.

In conclusion, while research suggests that L-Theanine may help reduce anxiety and promote relaxation, individual experiences can vary. If you're considering using L-Theanine for anxiety, it's advisable to discuss it with a healthcare professional to determine the best approach for your specific needs.