Tea leaves contain about 20 different amino acids, with L-theanine being the most prominent.

This unique amino acid neutralizes the negative effects of caffeine—such as feelings of anxiety and nervousness—while enhancing its positive effects. L-theanine promotes cognitive awareness, improves focus, and supports mental performance.

In addition, L-theanine has a calming effect on the nervous system, strengthens the immune system, and helps reduce emotional symptoms such as PMS. This explains why a cup of tea can bring both a sense of relaxation and heightened alertness at the same time.

The tradition of monks, meditation, and tea drinking is deeply rooted in various spiritual practices, especially within Buddhism. Buddhist monks discovered that tea helped them stay alert and focused during long meditation sessions. The combination of caffeine and L-theanine in tea promotes both wakefulness and inner calm—exactly the balance needed for deep meditation. As such, tea is not just a beverage, but an essential aid in cultivating mindfulness and mental clarity.