Men are assailed by the diseases that can affect anyone—heart disease, stroke, diabetes, cancer, depression… But they also have unique issues such as prostate cancer and benign prostate enlargement. Many of the major health risks that men face can be prevented with a healthy lifestyle: regular exercise, a healthy diet, not smoking, stress reduction, and alcohol consumption in the moderate range (no more than two drinks a day) if at all. Regular checkups and screening tests can spot disease early, when it is easiest to treat.

The World Health Organization describes mental health as "a state of well-being in which the individual realizes his or her own abilities, can cope with the normal stresses of life, can work productively and fruitfully, and is able to make a contribution to his or her community".Mental health is not just the absence of mental illness. Mental illness is described as 'the spectrum of cognitive, emotional, and behavioral conditions that interfere with social and emotional well-being and the lives and productivity of people. Having a mental illness can seriously impair, temporarily or permanently, the mental functioning of a person. Other terms include: 'mental health problem', 'illness', 'disorder', 'dysfunction'