Anemia describes a condition in which red blood cells are less able to carry oxygen around the body.

Read on to learn how otherwise healthy habits can affect your teeth and gums and what to do to keep them strong.

Here, we dive into four such of them — sweat, blood, snot and urine — to decode whether you’re healthy or if your body’s trying to tell you something.

The simple sugar glucose serves as a primary fuel for energy generation in the body. The brain and some other cell types rely exclusively on glucose for fuel.

Normal wound healing takes about 3 weeks, but some wounds can take months or even years to heal. Local factors such as the condition of the wound, infection, trauma and edema affect healing as can systemic factors -- those that affect the whole body -- such as age, general health and nutritional status.

Steroids are powerful and effective drugs used to treat a variety of medical conditions. Corticosteroids, the most common group of steroids, treat arthritis, asthma, autoimmune diseases, skin conditions and some kinds of cancer.

Electrolytes are minerals in your blood and body fluids that carry an electric charge. The balance of the electrolytes is essential for the normal functioning of your cells and organs. Mental status changes are one of the most common presentations of electrolyte imbalances.

A systems of the human body consist of specific organs, tissues and cells that work together to perform specific functions. These body systems work in complementary ways to maintain your overall health.

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.

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.

Scalp pain and sensitivity occur for a variety reasons, ranging from common skin conditions and infections, to the physical irritation from scratching or harsh chemicals. Disorders affecting the nerves and blood vessels can also cause scalp tenderness and sensitivity.

Bacteria are all around us, in the air, on objects and normally found in and on the human body. When bacteria is on the human body in the absence of disease, it is called a colonizer.