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When it comes to brain health, most people focus on sleep quality, diet, or lifestyle habits to stay sharp.
However, what you drink throughout the day—whether water, soda, or tea—can also affect brain function. Several popular teas contain compounds that support memory and focus, but one stands out as the top recommendation from nutrition experts, according to Realsimple.
That tea is green tea.
“My top choice is green tea, including matcha. It stands out among other beverages due to its unique combination of bioactive compounds,” says nutritionist Vandana Sheth.
Green tea contains catechins—especially EGCG—along with L-theanine and a small amount of caffeine. This combination promotes calm focus, mental clarity, and long-term brain health in a way most other teas cannot.
L-theanine helps you feel relaxed without drowsiness and moderates the effects of caffeine, Sheth notes. Meanwhile, the catechins in green tea provide both antioxidant and anti-inflammatory benefits that support brain cells. Together, these compounds make green tea especially effective for sustained attention and cognitive health over a lifetime.
Black tea can also benefit the brain, but unlike black tea, green tea leaves are minimally oxidized, preserving higher levels of catechins like EGCG.
How to brew the perfect cup
To maximize green tea’s brain-boosting potential, brew it correctly. Use hot, but not boiling, water and steep for no more than 2–3 minutes. The ideal water temperature is around 71–81°C (160–180°F). Overheating or oversteeping can reduce the beneficial compounds in the tea.
Find a green tea you enjoy—making it a daily habit is easier when it tastes good rather than feeling like a chore. Research suggests aiming for one to three cups per day to see cognitive benefits over time. Regular consumption has a greater effect than occasional drinking.
Green tea can also support heart health. Its catechins gently relax blood vessels, improve circulation, and reduce tension, helping the heart work more efficiently. While tea isn’t a substitute for medication, adding it to your routine can be a small but effective step toward better cardiovascular and brain health.
