There are five areas of health related fitness. They are heart and lung endurance or cardiovascular endurance, muscular strength, muscular endurance, flexibility, and body composition. ... Muscular Strength is the amount of force you can put forth with your muscles. It is often measured by how much weight you can lift.
This term refers to the aggressive behavior exhibited by those who regularly use steroids. People may also become highly irritable, depressed, and moody.