Adderall is the brand name of a prescription drug used to treat attention-deficit/hyperactivity disorder and a sleep disorder called narcolepsy. Adderall is a stimulant drug. There are several drugs similar to Adderall, which are also stimulants but there are important differences.

Potassium permanganate is a chemical compound with disinfectant and deodorizing properties. Some people, including medical personnel, use it for healing skin conditions. Potassium permanganate is useful for cleansing wounds and treating infected eczema, along with fungal infections such as athlete's foot.

Arterial blood gasses are a common test done to measure the acidity and gas content of the blood, primarily the oxygen and carbon dioxide levels. Arterial blood gas levels are typically done in pulmonology, because it can give information on lung function.

MayoClinic.com describes the brain as “containing billions of nerve cells arranged in patterns that coordinate thought, emotion, behavior, movement and sensation.” Each part of the brain is responsible for a specific function, and they all work together.

When excess fluid accumulates in the circulatory system or body tissues, it results in swelling. This swelling, also referred to as water retention, causes puffiness and discomfort. In some cases, water retention affects the fingers.

Nerve damage can result from a variety of causes, including injuries, infections, and exposure to toxins, according to MayoClinic.com. Symptoms of nerve damage may include pain, tingling, burning and loss of sensation.

A power meter can provide an extremely accurate measure for gauging the intensity of your workout, but it’s also an extremely expensive gadget. Unless you are training hard and seriously for a cycling race, triathlon or other event, this tool is really more of a luxury than a necessary workout aid.

Zinc citrate is a form of zinc, an essential mineral, which is easily absorbed by the body. Adults should consume between 8 and 11 milligrams of zinc daily, according to the University of Maryland Medical Center website. Food sources of zinc include crab, beef, oysters, chicken, nuts, yogurt and milk.

Pregnancy is an intricate development of cells which multiply and eventually form a baby. Hormones play a complex role in this metamorphosis and assist physicians in determining the healthy progression of a pregnancy or potential problems.

The spleen is a lymphatic organ located in the body's upper left abdominal quadrant. It filters and stores red blood cells, removes bacteria and other microorganisms and produces white blood cells for immunity.

A clogged or blocked feeling in the ears is generally caused by a blockage of the eustachian tubes. The eustachian tubes connect the upper throat and back of the nose with the middle ear. They function to equalize the pressure in the middle ear with the air pressure outside of the ear.

Boils are known scientifically as furuncles; they are characterized by an infection that makes its way into a hair follicle and the surrounding tissues. The National Institutes of Health reports that boils are most often caused by bacteria on the surface of the skin.