A cardiac stress test, also called the exercise stress test, evaluates the working condition of the heart. Approximately 18 million people over 20 are diagnosed with coronary artery disease annually.

Acute bronchitis or chest cold is a condition in which the airways in the lungs swell up and produce mucus. It is one of the most common types of bronchitis and can last up to three weeks.

Adenoviruses refer to a group of viruses that may cause various infections and have cold-like symptoms. These viruses infect the airways and lungs, the nervous system, the lining of the eyes, the urinary tract, and the intestines.

Attention deficit hyperactivity disorder, commonly referred to as ADHD, is a mental health condition that affects millions of people worldwide. Those with the disease have difficulty paying attention, display impulsive behavior, and have trouble sitting still in one place.

Adhesions are scar tissue bands that join organs or tissues to each other. These look like thick fibrous bands or like thin plastic films. Abdominal adhesions are often formed following surgical procedures.

When the body mends an injured area, scar tissue tends to form. The structure of external scar tissue differs from that of the skin. Collagen proteins grow in a straight path in scar tissues; however, collagen grows in a multi-directional manner in healthy tissues.

A hysterectomy is a surgical procedure wherein doctors usually remove parts of the female reproductive system, including the uterus, ovaries, and fallopian tubes. Individuals are unable to become pregnant after the surgery.

Psoriasis is a long-lasting skin condition that develops when the immune system attacks the body instead of protecting it. One of the most common types of psoriasis is scalp psoriasis, which can affect the hairline, forehead, back of the neck, and even the skin in and around the ears.