![]() Research shows that consuming green tea significantly lowers systolic and diastolic blood pressure, which are the two different numbers by which a person's blood pressure is recorded.Ī large 2006 study also showed that people who consumed six or more cups of green tea day, compared to those who consumed less than one a week, were 33% less likely to develop type 2 diabetes. High blood pressure is one of the most common risk factors for heart disease. Green tea has been found to play a role in heart health by reducing the risk factors that cause heart disease. A 2017 review of 21 studies on the benefits of green tea also determined that drinking green tea is beneficial to cognition and brain function. Research shows that the combination of caffeine and L-theanine improves brain function by strengthening working memory and attention, and reducing anxiety.Ī small 2019 study observed the effects of drinking green tea on brain function, concluding that regular tea drinkers have higher cognitive functions and better-organized brain regions, as compared to non-tea drinkers. Green tea also contains an amino acid called L-theanine, which has been found to help reduce stress and boost your mood. The amount of caffeine in green tea is much lower than in coffee, so you can get some of the benefits of caffeine without the unpleasant side effects, like jitteriness. Research shows that regular consumption of caffeine may reduce the risk of developing these conditions. Blocking adenosine can prevent drowsiness, which is why so many people use caffeine to stay awake and mentally sharp.Īn overproduction of adenosine in the brain has also been linked to cognitive conditions like Alzheimer's and Parkinson's. ![]() ![]() Caffeine can block a chemical messenger in the brain called adenosine, which controls when you feel sleepy or awake. One of the main ingredients in green tea is caffeine. ![]()
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