Studies and Researchers found that people who drink coffee regularly may have an 11% lower risk of developing type 2 diabetes than non-drinkers and the ingredients in coffee that can affect levels of hormones involved in metabolism. People who drank several cups a day actually had a lower risk of stroke. Heart experts say the benefits may come from coffee’s effect on the blood vessels. And by keeping vessels flexible and healthy, it may reduce the risk of atherosclerosis, which can cause heart attacks.