Made with steamed tea leaves, Green Tea has a high concentration of EGCG and has been widely studied. Green tea has been shown to improve blood flow and lower cholesterol. It has also proven to keep blood sugar stable in individuals with diabetes.
Green tea can also prevent a range of heart-related issues, from high blood pressure to congestive heart failure. And what's good for the heart is also good for the brain!
In one Swiss study, MRIs revealed that people who drank green tea had greater activity in the working-memory area of their brains. Green tea has also been shown to help block the formation of plaques that are linked to Alzheimer's disease.