One of the oldest tenets of Western medicine is that a drink used for countless purposes can also become a fountain of youth. Coffee has become the subject of much debate in recent years as more consumers have been documenting their skyrocketing coffee consumption, with larger cups and varieties purchased by Americans climbing as much as 22 percent from 2010 to 2015. Experts note that caffeine, the main component of coffee, can help lower blood pressure, extend the longevity of colorectal cancer patients, improve mood and relieve pain while boosting concentration. The American Journal of Public Health declared in 2015 that coffee “improves cognitive function and flu prevention, while increasing longevity.” The American Cancer Society report that coffee consumption “is not associated with an increased risk of developing esophageal cancer.” There have also been some studies that claim coffee has negative health effects such as a link to liver cancer, bladder cancer and heightened risk of obesity. In addition, some studies have suggested that drinking more coffee might actually raise the risk of colorectal cancer. Further research remains needed on coffee consumption and its impact on both stomach and pancreatic cancer, and other digestive disorders.