Not surprisingly, a recent study found that full adherence to guideline-recommended therapies leads to fewer major adverse cardiac events and lower healthcare costs. The study, published included more than 4,000 post-heart attack patients and almost 13,000 individuals with atherosclerotic disease. A history of gallstone disease may put you at higher risk for developing coronary heart disease, according to a study published recently. Gallstone diseases is one of the most common gastrointestinal disorders. Taking high-dose supplements of omega-3 fatty acid supplement from fish oil may help improve heart function and reduce scarring after a heart attack, according to research published by the American Heart Association.