Hot or cold, Tea is a restorative beverage with the range of health benefits. Tea comes from an evergreen shrub (Camellia sinesis), harvested from either a narrow-leaf variety that grows in the cool mountains of central China and Japan, or from a broad-leaf variety that prefers the moist, tropical climate of northeast India and west-central China. Both varieties display glossy green leaves and small white flowers. The four main teas-black, green, oolong, and white-all offer health benefits, including high levels of antioxidants, sodium, proteins, and carbohydrates. Tea has been used to treat high cholesterol, breast cancer, diarrhea, asthma, cardiovascular issues, skin irritation, and cold sores.