Black tea contains caffeine and an amino acid called L-theanine, which may help improve alertness and focus. L-theanine increases alpha activity in the brain, resulting in relaxation and better focus.

Black tea contains theaflavins and thearubigins (antioxidants), which have health benefits for your body. ... may contribute to better focus and alertness. Potential Risks of Tea.

Black tea's caffeine and L-theanine content can improve focus, alertness, and mental clarity. The range of polyphenols in black tea supports immune, heart, metabolic, and gut health.

Black tea contains nearly 50 mg of caffeine, a potential element for enhanced focus, in addition to L-theanine. One study demonstrated the impact of black tea on cognitive function.

Black tea contains an amino acid called L-theanine. This nutrient increases attention to tasks, improves focus and alertness (when combined with caffeine), and helps you relax.

How tea helps with focus and stress relief. Drinking tea can be an effective pick-me-up, thanks to its combination of caffeine and L-theanine, which improves alertness without the jitters ...

Many people drink black or green tea while at work, believing that it boosts their mental focus. A 2021 study focusing on the effects of L-theanine on cognitive function in older adults appears to ...