Working out keeps your heart, lungs and muscles healthy and helps prevent excess body fat. Regular exercise gives your body a toned appearance and increases your energy level. However, your desire to exercise can dissipate quickly if your acne gets worse after working out.

Few people enjoy being sick, whether the illness results from contact with an external harmful agent such as a pathogen or an internal condition such as cancer.

Unlike other aerobic exercises such as jogging, swimming puts little stress on your joints, making it an ideal exercise for people with arthritis.

Aging generally results in physical deterioration, including a loss of muscle tone. Even seniors who stay in shape may experience increased muscle weakness and flabbiness over age 70. The percentage of people who lose muscle mass rises to over 50 percent at age 80 from 13 to 24 percent at age 70, according to Dr.

Bodybuilders, powerlifters and regular exercisers often work deadlifts into their routines. Whether to perform partial or full deadlifts depends on your lifting experience and abilities, as well as your goals -- whether you want to work the entire body or isolate the upper body musculature.

Calisthenics is a combination of resistance exercises that involves the use of your body weight. These exercises can be done anywhere with no equipment needed. Common calisthenics include pushups, crunches and jumping jacks. There are numerous benefits reaped from using calisthenics to improve muscular fitness.

The Bulgarian split squat is a variation of a regular squat that's done with one leg. Done with the rear foot elevated on a bench, it builds lower body muscles without the additional stress on the back found with traditional squats.

The torso twist is a strength-training exercise designed to tone the ab and core muscles. Like sit-ups and other natural resistance exercises, torso twists are generally not effective for burning large amounts of calories on their own.

If you want to lose weight or get in shape, following a nutritious eating plan and a regular exercise program are the most effective ways to achieve your goals.

You can adapt almost any kettlebell exercise to use with dumbbells. For a very few exercises -- such as Turkish get-ups -- there's no real difference in mechanics.

When the final whistle sounds at a basketball game, your responsibilities to defend an opponent and execute your team's offense are replaced by your responsibilities to care for your own body. Following healthy post-game recovery techniques will do more than ward off feelings of muscle fatigue and stiffness.

Both running and lifting weights give you benefits for fitness and health. You can run in the morning and lift later on if that suits your lifestyle and fitness goals. Running increases your cardiovascular endurance, while lifting weights develops your muscular strength and increases your lean muscle mass.