The five most common causes of alcoholism are genetics, mental health issues, environmental factors, physical health issues, and problem drinking. Genetic factors can play a role in the development of alcohol addiction, as certain biological and psychological traits can be passed down from one generation to the next. Mental health issues such as depression, anxiety, and post-traumatic stress disorder can also contribute to problem drinking. Environmental factors, like living in a household where alcohol is abused, or having easy access to alcohol, can also be a factor. Physical health issues such as chronic pain, diabetes, or liver problems can also lead to drinking as a way to cope with the pain or discomfort. Finally, problem drinking can be caused by simply drinking too much alcohol, leading to an increased tolerance and an eventual dependence on alcohol.