A lot of research has been done on coffee to refute many early misconceptions that coffee is bad for you. With caffeine as its active ingredient, the problems associated with it include increased blood pressure, increased heart rate, and increased risk of irregular heartbeat. There are ongoing studies to show whether coffee is related to breast cancer and osteoporosis. Many of these negative effects are due to overconsumption, so coffee should be taken in moderation, much like any other substance. However, a lot of new research has shown that coffee might even be good for you. According to a Harvard Research newsletter, coffee has been indicated potential decreases in risk for type 2 diabetes, gallstones, colon cancer, liver damage in people at high risk for liver disease, and Parkinson s Disease. Coffee has also been shown to increase memory, alertness, and even endurance in physical activities.