Improve brain function

Tea drinking may assist preserve brain function and memory, as well as maybe guard against age-related deterioration, according to recent studies. In fact, various components of tea have been shown to improve brain function. Caffeine, for example, can boost the release of norepinephrine and dopamine. These two brain messengers may help with mood, focus, and brain function. According to other studies, theanine, an amino acid found in tea, may also aid enhance focus and decreasing anxiety. According to a 2014 study, tea with both caffeine and theanine boosted alertness and attentiveness within the first 1 to 2 hours after ingestion.

Few studies have explicitly focused on oolong tea, however, a 2008 research discovered that a "high level" of tea drinking was connected with a decreased incidence of cognitive impairment and cognitive decline. This impact was especially powerful for habitual black and oolong tea consumers. Another smaller research from 2010 found that older Chinese individuals who drank green, black, or oolong tea on a regular basis had better cognition, memory, executive function, and information processing speed.