<human>:  What are the health benefits of black tea?
<bot>: Black tea is rich in antioxidants, which can help reduce inflammation and fight off free radicals that can damage cells. Additionally, studies have shown that black tea can help lower cholesterol levels, reduce the risk of heart disease, and improve digestive health. It has also been shown to reduce stress and improve mental alertness. Finally, black tea is rich in vitamins and minerals, which can help boost the immune system and provide other health benefits.