If you notice a foul smell in you or your child's ear, it could be a sign of an ear infection. Other symptoms include ear pain, ear discharge and a feeling of fullness in the ear, MedlinePlus reports. If you do develop an ear infection, antibiotics can be used to treat.

The amount of urine your body produces in a day can be directly related to your health. The kidneys' main function is to maintain the correct balance of water and various chemicals in your blood.

Poor nutrition habits can be a behavioral health issue, because nutrition and diet affect how you feel, look, think and act. A bad diet results in lower core strength, slower problem solving ability and muscle response time, and less alertness. Poor nutrition creates many other negative health effects as well.

The oblique muscles make up 2 of the 4 abdominal muscle groups in the body and are separated into internal and external segments. These core muscles play an important role in many common activities, including sitting, standing and walking.

It eventually happens to almost all contact lens wearers: You fall asleep while still wearing your contacts. With approximately 10 percent of Americans wearing contact lenses regularly, according to the American Academy of Ophthalmology, concerns about sleeping with contact lenses are common.

Blood oxygen level is an important medical tool used to determine how effectively you are taking oxygen into your body. If you're in good health, normal blood oxygen levels almost always fall within a very predictable range.

Anxiety disorders affect around 18 percent of American adults in a given year, according to the National Institute of Mental Health. The neurotransmitters gamma-aminobutyric acid, serotonin and norepinephrine are all thought to be involved in the development of anxiety disorders.

The metabolic break down of dietary fats supports many life-sustaining functions. Metabolized fat is stored as a reserve source of energy for use when needed. Fat provides insulation to keep your body warm; the fat beneath your skin is a source of heat when skin temperature drops.

Conventional ear piercings use a 20-gauge needle. That’s also the starting size for ear gauging, a modern trend that imitates the ancient tribal means of body decoration.

Gliding joints are also called plane joints or arthrodial joints. The book "Fundamentals Concepts of Anatomy" describes gliding joints as flat bone diarthroses that move in a gliding action that is limited by ligaments. Ligaments are the fibrous tissues that hold bones together.

Swollen joints are often the result of an inflammatory condition. Chronic swelling, stiffness and mobility are apparent in more than 100 types of arthritis. The disease limits nearly 19 million adults in the U.S. and the U.S. Centers for Disease Control and Prevention reports it is the most common cause of disability.

If you've ever tried to move your ears, you'll notice that it's not the ears themselves that move but the muscles surrounding them. Muscles in the scalp and in the face, jaw and the neck may facilitate movement of the ears, according to Jocelyn Selim in the June 2004 issue of Biology and Medicine.