Coffee May Help Protect Aging Cells, Study Suggests

New research suggests coffee compounds may influence key cellular pathways to protect aging cells. Additionally, an American Heart Association review indicates that consuming up to 400 milligrams of caffeine daily, approximately three to five cups of black coffee, is generally safe. This habit may link to lower risks of heart failure, stroke, heart disease, and Type 2 diabetes. Conversely, highly concentrated energy drinks and shots can trigger irregular heart rhythms and sharply increase blood pressure.