While drinking alcohol in excess may hurt your health, drinking red wine in moderation has many health benefits. A glass of red wine can protect against certain types of cancer, slow memory loss, fight weight gain and prevent cavities, according to Everyday Health.
Red wine contains reservatrol and antioxidants called polyphenols that raise high-density lipoprotein cholesterol, also known as "good" cholesterol, and reduce the risk of blood clots. However, drinking wine in excess has the opposite effect and can raise triglycerides and blood pressure, causing heart or liver damage. Neither the National American Heart Association nor the National Heart, Lung, and Blood Institute recommend starting to drink wine in order to receive these debated health benefits since wine can become addictive and worsen health when drunk in excess.