Our MR analysis revealed a risky effect of tea intake on AD. A nominal risk effect of tea intake was found that one extra cup of tea consumed per day would dramatically increase the risk of AD. Similarly, a recent two-sample MR study showed that per extra cup of coffee was associated with an increased risk of AD ( 35). A possible explanation of the risk effect could be the caffeine in tea. A study of long-term low-dose caffeine effects on an AD mice model indicates that caffeine was associated with increased anxiety behaviors, which might increase the risk of AD ( 36). Other observational studies suggest that caffeine can cause sleep loss, prolong sleep latency, and induce insomnia, which contributes to cognitive decline, and might also heighten the risk of AD by increasing the β-amyloid burden ( 37– 41). If green tea is a little too mild for you, consider giving oolong a try — because of the extra oxidization, it has a more robust flavor. One prospective study of 365,682 people looked at the association between drinking tea or coffee and the risk of stroke, dementia, and post-stroke dementia. Consuming large amounts of sugar, particularly from sweetened beverages, has been shown to increase blood sugar values and the risk of type 2 diabetes ( 26).

Brain Tea is also rich in antioxidants and other nutrients that can help protect the brain from damage and promote healthy brain function. Should You Use Nootropics? Peñuelas, M, et al. (2022). Botulism in Spain: Epidemiology and outcomes of antitoxin treatment, 1997–2019.Jalalyazdi M, Ramezani J, Izadi-Moud A, et al. Effect of Hibiscus Sabdariffa on Blood Pressure in Patients With Stage 1 Hypertension. Journal of Advanced Pharmaceutical Technology & Research. July–September 2019. Results from laboratory tests have suggested that compounds in chamomile may help prevent the growth of glioma, liver cancer, cervical cancer, and leukemia.

Vitamin B12 is also involved in synthesizing brain chemicals and regulating sugar levels in the brain ( 72). organic, vegan, allergen-free, no sugar added, chemicals free, produced in an FDA certified facility in the US. And approved by Health Canada to support memory and focus and boost brain function. Nevertheless, supplementing your diet with spearmint tea is a natural way to improve sleep, mood, and cognitive performance , particularly in individuals with age-associated memory impairment (AAMI). That’s not all, though: Chamomile tea may support immune health, says Retelny. One review suggested that chamomile tea may help stimulate the immune system, but the researchers noted that more clinical trials need to be done. Also, a 2022 review found chamomile to possess possible anti-inflammatory, antioxidant, anticancer, and blood-pressure-lowering properties. However, most of the studies included were performed in a lab, not with humans. Gotu Kola is an ancient herb which has been a mainstay in Ayurvedic and Chinese herbal medicine. Popular for improving blood circulation and wound healing, it is also good for enhancing mental functioning.Akbari F, et al. (2019). Effect of peppermint essence on the pain and anxiety caused by intravenous catheterization in cardiac patients: A randomized controlled trial. Abe SK, Inoue M. Green Tea and Cancer and Cardiometabolic Diseases: A Review of the Current Epidemiological Evidence. European Journal of Clinical Nutrition. June 2021. How well you focus depends on the external and internal things that your brain allows to disrupt your attention. Loud noises, flashing lights, cellphones, thoughts, and emotions are common distractions. This is the freshest and least processed of the teas from the Camellia sinensis plant. It retains a high amount of antioxidants like the polyphenol EGCG.