...Written by Tiffany La Forge. Medically reviewed by Natalie Butler, R.D., L.D Sipping matcha daily can have a positive impact on your energy levels and overall health. Unlike coffee, matcha provides a less jittery pick-me-up. This is due to matcha’s high concentration of flavonoids and L-theanine, which increases the brain’s alpha frequency band and produces relaxing effects by raising serotonin, GABA, and dopamine levels. Research suggests that L-theanine is especially helpful for high levels of stress and anxiety, increasing relaxation without causing drowsiness. These effects have even been found at doses given in a cup of tea.In addition, L-theanine does some amazing things when paired with caffeine, à la matcha — the amino acid can help improve cognitive function and increase...