Tip of the day: Avoid excess alcohol and help prevent disease

Chronic alcohol abuse and even episodes of heavy drinking can suppress immune function. Alcohol impedes the ability of white-blood cells to travel to infected sites, gobble up and destroy foreign invaders, and identify malignant cells. As a result, alcoholics are more susceptible to bacterial diseases such as pneumonia and tuberculosis, and have an increased risk of developing cancer. So limit your intake to no more than two drinks per day for men and one drink per day for women.

Read more about what you can do to boost your immunity, and read Dr. Marvin Lipman's advice on alcohol use.