Abstinence

A deliberate decision to avoid harmful behaviors, including sexual activity before marriage and the use of tobacco, alcohol, and other drugs.

Acquired immune deficiency syndrome (AIDS)

A disease in which the immune system of the patient is weakened.

Action plan

A multistep strategy to identify and achieve your goals.

Aerobic exercise

An activity that uses large muscle groups, is rythmic in nature, and can be maintained continuously for at least 10 minutes three times a day for 20 to 30 minutes at one time.