web Desk:A new study suggests that drinking up to five cups of black coffee a day may help reduce the risk of heart disease and stroke, although researchers caution that excessive caffeine consumption can be harmful to health.

According to the study, black coffee consumed without sugar, milk or flavored additives offers several health benefits. Researchers found that people who regularly drank black coffee had a lower risk of developing type 2 diabetes, cardiovascular disease, stroke, heart failure and cardiac arrhythmias.

The researchers said coffee contains antioxidants that help protect the body from harmful molecules, improve blood vessel function and reduce inflammation. Chronic inflammation is considered a contributing factor to several serious diseases, including cancer.

The study also found that caffeine may provide similar health benefits, although its effects can vary from person to person. However, consuming excessive amounts of caffeine may overstimulate the heart, leading to elevated blood pressure, irregular heartbeat and, in some cases, an increased risk of heart attack even in otherwise healthy adults.

Dr. Gregory Marcus, head of the research team at the University of California's Division of Cardiology, said caffeine is an important part of the daily routine for millions of people around the world.

He noted that drinking one to three cups of coffee has been associated with a temporary rise in blood pressure, which may increase the risk of heart attack and stroke in some individuals. However, regular coffee consumption has also been linked to a lower risk of atrial fibrillation, a condition characterized by an irregular heartbeat that can lead to palpitations, heart weakness, blood clots and stroke.

The researchers concluded that while moderate consumption of black coffee may offer cardiovascular benefits, excessive caffeine intake should be avoided, particularly by individuals with high blood pressure or existing heart conditions.