6. Tea
Research has found that if you drink 1 – 4 cups of tea throughout the day you will improve your focus, alertness and mental performance.[17] This is due to 2 components in tea – L-theanine and caffeine. L-theanine’s an amino acid which is found in tea that increases your alpha brain waves, which results in a relaxed mental state and increases your creative thinking.[18] Caffeine on its own can increase your focus over an extended period of time, but caffeine and L-theanine combined can improve the accuracy of the tasks that you are focusing on for up to 5 hours.[19]
A review of several studies revealed that tea consumed at regular intervals can help you to maintain focused attention, alertness and accuracy of tasks. L-theanine interacts with the caffeine to enhance your attention switching performance and your ability for ignoring distraction.[20]
What to do: Choose green tea for its additional health benefits.
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