Vitamin B-12, or cobalamin, is an important component for several metabolic reactions in the body. Although Vitamin B-12 deficiency is rare, it can result in anemia and serious cases of neuropathy and dementia. Daily recommendations for adults are 2.4 micrograms a day. B-12 is typically found in animal sources.

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.

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.

Nearly all children will experience a clogged nose and ears, also referred to as congestion or stuffy nose. Most of the time, these uncomfortable symptoms result from a minor illness or allergies.

Your immune system forms a barrier against infectious disease. Lymphocytes, a class of white blood cells, play a key role in recognizing and fighting harmful pathogens.

Glucose is a sugar that serves as a primary energy source for your body. It also provides fuel for optimal brain and nervous system activity, which may help support cognitive functions such as learning and memory. The human body stores glucose in several forms to meet immediate and future energy requirements.

Almost 60 percent of the human body is water, which is little wonder when you find out why this fluid is so vital to your body's function. Each day, the body must replace 2.4 liters of water, mostly through drinking water and consuming foods with a high water content.

The human body is made up of hundreds of muscles that must work together to allow for body movements. Although many of the body's muscles are small, and work in accordance with other muscles for proper movement, there are large muscles, within the body, that are primarily responsible for certain body movements.

Skin itchiness, also known as pruritus, is a common ailment that can be associated with many diseases and conditions. Most people have experienced itchiness to some degree, whether it be due to a mosquito's feast, hives, liver or kidney disease or even cancer.

Ear irrigation refers to the process of flushing your ears with a liquid to clean and remove foreign particles. Whether it is discharge that needs to be removed, hardened ear wax that needs softening or a small object that needs to be dislodged, irrigation is the way to go.

According to The Society of Chiropodists and Podiatrists, our feet carry us the equivalent of five times around the earth in an average lifetime. There are many occupations that require being on your feet all, or most, of the day, like nursing, retail and the restaurant industry.

L-Glycine, or glycine, is a non-essential amino acid, which means your body can produce it on its own if not enough glycine is available through your diet. Glycine is the smallest amino acid in size, but it has many powerful effects on your body and is involved in a variety of biochemical reactions.