Drinking tea, especially green tea, is associated with better heart health, improved metabolism, and a lower risk of chronic diseases such as diabetes and cancer. It can also protect the brain and preserve muscle strength in old age. A study of more than 40,000 Japanese people showed that drinking 5 or more cups of green tea a day reduced the risk of dying from heart disease by 26%. Other studies confirm a reduction in mortality and prevention of chronic diseases when consuming 5 or more cups a day. Processed teas, such as bagged and bubble teas, often contain sugars and additives that can negate these benefits. Moderation and choosing freshly brewed tea are key.[1][3][4]