Green Tea
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Green tea contains some component that makes it a brain-healthy beverage and helps you focus. Two of its most important elements for the healthy brain are caffeine and l’theanine. There is no doubt that caffeine enables you to focus and improves alertness, memory, and performance. Good, that’s covered. So what’s the function of l’theanine? It is an amino acid that helps to increase the frequency of alpha waves in the brain activity, which helps you feel more relaxed and reduces anxiety. These two ingredients combine forces to produce a better ability to focus, with improved speed and accuracy.