Multiple sclerosis (MS) is a chronic autoimmune condition that disrupts communication between the brain and body. It targets the central nervous system — specifically, the protective myelin coating ...

Towards the end of the digestive process, our stool passes through the anal canal, ultimately making its exit from the anus. The anal canal is a small tube at the end of the rectum. Occasionally, anal ...

Asthma is a common lung problem that causes breathing difficulties for people of all ages, though most people develop the condition in childhood. The severity of an asthma attack varies from person to ...

Black stool isn’t always a cause for alarm—sometimes it’s just the result of something you ate or a side effect of medication. But in some cases, it can signal bleeding in the upper gastrointestinal ...

Asthma is the most common chronic respiratory disease worldwide, causing symptoms like wheezing, chest tightness, and shortness of breath. While there’s no cure, most people manage symptoms with ...

Dry mouth, or xerostomia, is the uncomfortable feeling of dryness in the mouth that often stems from reduced saliva production. While it might seem like a minor issue, saliva plays a key role in ...

Kidney stones—hard, crystalline deposits that form in the kidneys—affect nearly 15% of the population and often come with intense pain and a high chance of recurrence. These stones typically develop ...

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 ...

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 ...

Antibodies, also known as immunoglobulins, are large proteins that can identify and eliminate foreign invaders and proteins the body doesn't recognize. Along with B and T cells, antibodies are the ...

Presbycusis is the medical term for age-related hearing loss. It is a common condition that affects roughly one-third of Americans between the ages of 65 and 74. This number jumps to approximately 50 ...

Although their functions may appear simple, the ureters perform essential excretory work for the body. These two slender tubes transport urine from the kidneys to the bladder. The ureters use a ...