Consuming calories is essential for the human body to function. Consuming too many calories can cause health problems, as can eating too few calories. Eating disorders, extreme diets and some medical conditions may cause a person not to consume enough calories.

Ankle injuries, particularly injuries to the ligaments on the lateral side of the ankle joint are one of the most common sports injuries that occur when the ankle "rolls" under the athlete.

Essential oils command the prices they do because of the large amounts of plant material that go into the making of each small vial. Often, this cost exceeds what the beginning herbalist or fragrance crafter wants to pay.

Reflexology is the ancient art of foot massage which originated in China and which was also known to the Ancient Egyptians. It is believed that energy runs through the body in channels known as meridians and that massage of the feet stimulates these energy channels, promoting healing and relaxation.

Lipomas are fatty lumps that usually appear just beneath your skin. Several different medical conditions have been linked to the development of these common tumors, without any specific cause identified as of July 2011.

YogaToes are rubbery toe separators that separate the toes from each other, away from the ball of the foot and down from the top of the foot. They are designed to affect the muscles of the feet much like a workout or massage affects other parts of your body.

A textbook period occurs every 24 to 29 days, notes the Women to Women website, but not everyone has a textbook period. Most periods last from 3 to 5 days, but a period lasting anywhere from 2 to 7 days is considered normal.

Eczema -- which is characterized by swollen, itchy, red patches of skin -- isn't life-threatening, but it can be extremely uncomfortable. This disorder is common, which is why many people turn towards home remedies to ease their symptoms.

While the skin is the largest organ outside your body, your liver is the largest organ inside your body. The liver is responsible for helping to store vitamins and minerals in your body and also to detoxify extra chemicals in your body.

Oxalic acid is a naturally occurring compound in many plant foods. It is used in industry as a bleaching agent and for rust removal. In your body, oxalic acid can combine with calcium in the kidneys to form kidney stones in susceptible people.

Uterine fibroids are growths in your uterus that are noncancerous and often cause no symptoms. Women are most likely to experience uterine fibroids during childbearing years, and your diet can play a large role in whether you develop fibroids and how quickly they go away.

The bladder is part of the urinary system and has the role of storing urine until you are ready to eliminate it. A properly working urinary system and bladder can hold up to two cups of urine for five hours, notes the National Kidney and Urologic Diseases Information Clearinghouse.