Another reason to enjoy your morning cup or cups of coffee is that it could cut your risk of a particularly aggressive form of breast cancer according a study by the Karolinska Institute in Stockholm, Sweden. This study of around 6,000 women found that those who drank one to three cups of coffee a day lowered their risk of estrogen receptor-negative breast cancer by 27%. Women who drank more coffee had even better numbers. In women who drank three to 5 cups a day, the number went up to 42%. The study author, Jingmei Li, Ph.D. explained, "Coffee is a top source of cancer-preventing antioxidants." So go right ahead and enjoy that morning coffee.