Boost brain function

Green tea not only refreshes you but also boosts your attentiveness. This advantage stems from the caffeine level, which acts as a brain stimulant. Green tea does not have the same amount of caffeine as coffee. However, it was sufficient to induce a sober reaction without creating the "jittery" symptoms associated with excessive caffeine use.

The advantages of green tea for the brain do not stop there. It also includes L-theanine, an amino acid that may transfer the blood-brain barrier. To counteract anxiety, L-theanine promotes the action of the inhibitory neurotransmitter GABA. This acid also stimulates the generation of dopamine and alpha waves in the brain. Caffeine and L-theanine have been shown in studies to benefit each other. The combination of these two substances gives a particularly powerful effect in improving brain function.