Tea comes from the Camellia sinensis plant and includes green, black, white, and oolong varieties. It has various health benefits such as enhancing metabolism, protecting against cancer, lowering blood sugar, strengthening teeth, and detoxifying and cleansing the body. Tea contains antioxidants like catechins that can reduce free radicals, shrink tumors, and influence glucose absorption. Drinking tea also helps control body fat and cholesterol levels while improving digestion. Expensive aged pu-erh tea cakes can sell for thousands of dollars at auction.