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, ...

Squamous cell carcinoma (SCC) is a common form of skin cancer that develops in the squamous cells—the flat cells located near the surface of the skin that regularly shed and regenerate. DNA damage ...

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 ...

Huntington's disease is a neurodegenerative disorder that occurs due to a mutation in the HTT or huntingtin gene. It is generally inherited, but a new mutation causes ten percent of cases. Every ...

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 ...

Peripheral neuropathy is a broad term for any condition that damages the peripheral nerves that transfer sensory information and carry signals from the central nervous system in the brain and spinal ...

Lymphoma is a cancer that originates in the lymphatic system, a vital part of the body’s immune defenses. This system includes lymph nodes, vessels, and tissues found in the bone marrow, spleen, ...

Vasodilation is the widening of the blood vessels, a process that happens naturally in response to various conditions to ensure blood flow is directed to where it is needed. Vasodilation can be useful ...

Barrett’s esophagus is a condition where the lining of the esophagus undergoes changes, often due to prolonged acid reflux. Over time, this chronic irritation causes the tissue to thicken and take on ...

Many complex systems make up the body, most of which the average person takes for granted. In the case of the digestive system, a general knowledge of how it operates and its purpose can provide a ...

For most mothers-to-be, childbirth is the finish line after a nine-month journey. The big day ideally arrives between 37 and 42 weeks of pregnancy. No matter how excited and ready pregnant mothers are ...

Ammonia is a chemical that both occurs naturally and can be created. It is a colorless gas — one part nitrogen and three parts hydrogen — with a foul smell that most people easily recognize.