红茶, or "black tea," is a type of tea that is fully oxidized, giving it a rich flavor and dark color. It is one of the most popular tea varieties worldwide and is known for its strong aroma and robust taste. Common types of 红茶 include 阿萨姆茶 and 大吉岭茶, both originating from 印度. This tea is often enjoyed plain or with milk and sugar, making it a versatile beverage. In addition to its delightful taste, 红茶 contains antioxidants and can provide health benefits, such as improved heart health and increased alertness.