Beer-drinkers' cardiomyopathy is a form of dilated cardiomyopathy caused by chronic alcohol abuse, particularly heavy beer consumption.Unlike other forms of heart disease, beer-drinkers' cardiomyopathy can be completely reversed if the patient stops drinking alcohol early enough.In the 1960s, cobalt added to beer for foam stability was identified as a major cause of Beer-drinkers' Cardiomyopathy in heavy drinkers.Patients with beer-drinkers' cardiomyopathy often present with shortness of breath, swollen legs, and severe fatigue.