The document lists 25 reasons why one should start drinking green tea, including that it can help reduce the risk of cancer, heart disease, and aging. Green tea is said to boost metabolism and help with weight loss, protect skin, bones and joints, lower cholesterol and blood pressure, boost the immune system, and reduce the risks of diabetes, Alzheimer's, Parkinson's, and liver disease. It can also help prevent cold, flu, asthma, ear infections, herpes, tooth decay, stress, allergies, and may even stop the spread of HIV.