Pressure points are specific sensitive areas on the surface of the body. You can exploit a pressure point for many uses. Martial artists quickly disable attackers by using a simple but forced push on a pressure point. Stimulation of pressure points also helps to relieve pain and assists in massage therapy.

The skeletal system is made up of bones and teeth. The normal human body has 206 bones which are needed for a variety of functions within the body. Bones are not static, which means they are constantly changing shape and composition to meet the body's needs.

Protein is a found throughout the human body in muscle, bones, hair, nails, skin and enzymes. It is the main structural component of the cells in our body. Amino acids are the basic building blocks of protein.

The spleen serves many purposes, from aiding in digestion to producing chemicals that destroy and recycle old blood cells. It’s also your personal blood bank in case of serious blood loss. If not working properly it causes many ailments such as obesity, bloating, muscle weakness, loose stool and constipation.

Goose bumps appear due to an involuntary nervous system response called the pilomotor reflex. This primitive response occurs when hair follicles are stimulated by specific nerves in the skin, which triggers contraction of tiny muscle cells called arrector pili at the base of the hair follicles.

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.

Mapping the mental activity of the brain shows that music stimulates parts of this organ just as food, drugs and sex do, reveals a report in the "Canadian Geographic" magazine. It is apparent that music can affect emotions and mood in the vast majority of individuals.

The pain of a muscle strain can make sleeping a challenge. Finding a comfortable position is one consideration, but it's even more important to avoid postures that may aggravate the injury or delay the recovery. Keeping a few simple concepts in mind can help ensure that the chosen sleep posture helps in healing.

If you're a fan of shows like "Westworld" and "The Walking Dead," you may be prone to experiencing crazy dreams. A new study explains why.

Puberty can be an awkward time of life. Hormone changes during puberty may cause your child to gain some weight.

When you turn 50 or 60, no one expects you to have the same energy levels you had in your teens and 20s. Slowing down as you age is normal, but experiencing chronic and extreme fatigue is not.

Plugged ears may occur as a result of colds, infections or allergies. This symptom is related to fluid buildup in your eustachian tubes -- the tubes that connect your middle ear with the back of your nose and upper throat.