Matcha green tea has very positive effects on the body and health. The combination of caffeine with L-theanine in Matcha green tea provides steady and long-lasting energy without the anxiety and side effects that coffee or energy drinks may cause. The combination of caffeine and L-theanine improves concentration because L-theanine enhances the production of alpha waves in the brain. Alpha waves promote relaxation and create a deep sense of mental clarity and increased alertness - the same state observed during meditation and yoga practice. Matcha green tea boosts the immune system and limits the growth of viruses and bacteria in the body.