Nitric oxide isn’t a nutrient you’ll find on food packaging — but it plays a critical role in how your body moves, recovers, and circulates blood. This molecule helps blood vessels relax and widen, ...

Dementia is a group of conditions that affect memory, thinking, and social skills to the point that they interfere with daily life. To receive a dementia diagnosis, a person must show a significant ...

Gout is a form of arthritis that causes sudden, severe joint pain—often in the big toe. These flare-ups happen when uric acid builds up in the blood and forms sharp crystals in the joints. Normally, ...

Spinal stenosis occurs when the spaces in the spine narrow, putting pressure on the spinal cord and surrounding nerve roots. These changes often develop gradually and can affect multiple areas of the ...

An electrocardiogram, called an EKG or ECG, measures the electrical activity of the heart and collects data about heart's health. Typically, a doctor or technician places electrodes connected to a ...

A nodule is an abnormal tissue growth that can appear anywhere in the body and can form for various reasons. Depending on their location, nodules may not cause symptoms, and many people with nodules ...

Many disorders can affect the digestive system. Some are physiological, while others are physical conditions with a strong psychological component. Rumination syndrome is one of the latter. People ...

In 1964, Dr. William Nyhan and his medical student Michael Lesch determined a patient diagnosed with cerebral palsy had other symptoms that did not fit his diagnosis. Their research resulted in a new ...

Exostosis is excess bone growth. With exostosis, bone grows outward from the original bone, causing it to thicken. In some cases, there's a palpable lump or area of thickness. Exostosis can be ...

Nabothian cysts are tiny growths that form on a woman's cervix. They are also known as cervical cysts, mucinous retention cysts, or epithelial cysts. The cervix or cervical canal connects the vagina ...

The Paleo diet, inspired by the dietary habits of our Paleolithic ancestors, has gained considerable attention in recent years. However, with popularity comes a host of misconceptions. In this ...

Pneumonia occurs when bacteria enters your lungs, when food, stomach acid, or your saliva goes down or comes up the esophagus -- the wrong channel. This condition is called pulmonary aspiration, and ...