How does excessive drinking contribute to heart disease?

Drinking excessively can increase your risk of developing a heart disease, this is because it increases the blood pressure, this is one of the most important risk factors for having a heart attack. Consuming too much alcohol also weakens the heart muscle, which means the heart cannot pump blood like it used to, causing sicknesses like cardiomyopathy which causes the weakened heart muscles and the four heart chambers to grow in size, and as a result leads to weak contractions. Other sicknesses may appear when consuming excessive alcohol such as arrhythmia.

drinking also contributes to adding fats to your body or infecting your blood and well the heart pumps the blood throughout the body hope I helped ;)