Hypoglycemia, or low blood sugar, most commonly occurs among diabetics, people taking certain medications or those with deficiencies of specific hormones and enzymes. But among people who are desperately trying to lose weight, not eating enough food or exercising too much can cause extremely low blood sugar levels.

Saunas have been used for thousands of years for reasons ranging from alternative health and ceremonial proceedings to relaxation purposes. As such, you can find saunas in personal homes, gyms, spas and healing centers across the world.

The medical term for low serum carbon dioxide levels is hypocapnia. It is usually caused by hyperventilation -- known as acute hypocapnia -- but can also result from asthma or hindrances to cerebral autoregulation, which is the disrupted regulation of blood flow in the brain due to tumors, hematomas or injuries.

Lasers employ an intense beam of light to permanently remove hair or scars from the body. During hair removal the laser pulse enters the hair follicle, where it burns the follicle, preventing hair growth. Lasers are also used to remove some types of scars, revealing a healthy layer of skin underneath.

Platelets are microscopic cell fragments found in your blood that help to form blood clots. If your platelets are too low, you may be at risk of bleeding and require a platelet transfusion.

Facial bruising is a common occurrence in small children, whose foreheads often connect with countertops or tables at face height. Toddlers often "take it on the chin"

Prescription drugs are not your only option for treatment of high cholesterol. A number of over-the-counter drugs and supplements have been shown to help lower your low-density lipoprotein, or LDL, levels. LDL is also commonly referred to as bad cholesterol.

Coumadin is a brand-name for the drug warfarin and is prescribed to patients at risk for blood clots. It is an anticoagulant and designed to thin the blood.

Many health benefits are associated with drinking a moderate amount of alcohol each day -- such as lowering blood pressure, improving insulin sensitivity and reducing risk of developing cancer and heart disease. However, excessive alcohol intake can have negative health effects, such as liver disease and cancer.

High cortisol levels, or Cushing's syndrome, occur when the body is exposed to high levels of cortisol, according to the National Institutes of Health. Cushing's syndrome can be caused by taking too much corticosteroid medication, or by tumors in the pituitary gland, adrenal glands or some other part of the body.

Your blood sugar levels affect your mood and energy levels. Blood sugar is readily available energy that the body can use to fuel various processes. The body normally regulates its blood sugar through a chemical called insulin, which breaks down blood sugar.

You may have heard the story of how Gatorade got its start. PepsiCo recounts the 1965 tale about a University of Florida assistant coach who sat down with university physicians and asked why his players were so affected by the heat.