The coccyx is your tailbone, which can suffer from a slew of disorders that become aggravated when you exercise. Coccyx disorders range from infections and tumors to bruises, bumps and cysts. The tailbone rarely breaks, but it often takes the brunt of falls, resulting in bruising or torn ligaments attached to the bone.

Knee pain is a symptom frequently associated with the development of rheumatoid arthritis and osteoarthritis. Individuals with these disorders sometimes report increases or decreases in their pain levels that appear to be associated with changes in local weather conditions.

You can strengthen your elbows with exercise bands, dumbbells, barbells and body-weight exercises. The elbow joint possess two types of movement: flexion-extension -- in which you bend and straighten your arm -- and pronation-supination, in which you turn the palm up and down.

Doctors often misdiagnose pes anserinus tendinitis as a medial meniscus tear or strain, so if your doctor says you have MCL, consider getting a second opinion. Both conditions cause pain in the inner knee.

Joints, or the pivot points between bones that allow bending and movement, can become sore at night for a variety of reasons. Diseases and conditions associated with aching joints range from lupus to growing pains.

Uric acid is a component normally found in the blood at low levels. Under certain circumstances, the level of uric acid in the blood can rise and stay at high levels. This causes several health problems, including joint pain.

Swollen ankles are caused by fluid building up around the foot and ankle. Common causes of ankle swelling include injury, age, pregnancy, extended standing and long drives or flights. Exercising the swollen ankles can help pump the excess fluid out and reduce the swelling.

Much like the god Atlas of Greek mythology, the job of the knee joint is to bear weight. As a weight bearer, the knee is subject to athletic, overuse and arthritic injury.

Your rotator cuff is a group of muscles that work together to move your shoulder joint through its range of motion. When you bench press a barbell, you use your rotator cuff muscles. Strengthening these muscles may help improve your bench pressing technique and increase your maximum weight.

Bursitis in the hip (trochanteric bursitis) is a painful condition most commonly seen in middle age or later. The trochanteric bursa is a fluid-filled cavity that sits above the prominent bone on the side of the hip.

A byproduct of protein consumption, uric acid, one of the agents contributing to symptoms of gout, can be controlled without drugs by changes in diet. Uric acid is eliminated from the blood stream into the kidneys and then excreted normally.

A meniscus tear is a rip in the cartilage inside your knee, often caused by a sudden, acute trauma, such as twisting your knee during sports. A degenerative tear -- which can happen during such everyday activities as walking or climbing stairs -- usually occurs as a result of aging or arthritis.