Men's health is important. Lifestyle changes such as eating healthy and getting plenty of exercise can prevent some diseases and conditions. The top 10 killers of men are heart disease, cancers, injuries and accidents, strokes COPD, diabetes, flu and pneumonia, suicide, kidney disease, and Alzheimer's disease. Learn what medical screening tests need to be performed as men age. Prostate health, men's sexual health, erectile dysfunction, and low testosterone are all important conditions to be aware of, and know the symptoms of, so that medical care can be sought when necessary.