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Description Substance use disorder (SUD) is complex a condition in which there is uncontrolled use of a substance despite harmful consequence. People with SUD have an intense focus on using a certain substance(s) such as alcohol, tobacco, or illicit drugs, to the point where the person’s ability to function in …

Definition Stomach cancer develops when cells in the lining of the stomach grow and divide in an abnormal way. Tumours can begin anywhere in the stomach, although most start in the glandular tissue found on the stomach’s inner surface (mucosa). This type of cancer is called adenocarcinoma of the stomach …

Definition Sjogren’s syndrome is an autoimmune disease characterized by dryness of the mouth and eyes. Autoimmune diseases feature the abnormal production of extra antibodies in the blood that are directed against various tissues of the body. The misdirected immune system in autoimmunity tends to lead to inflammation of tissues. This …

Overview Swimmer’s ear is an infection in the outer ear canal, which runs from your eardrum to the outside of your head. It’s often brought on by water that remains in your ear after swimming, creating a moist environment that aids bacterial growth. Putting fingers, cotton swabs or other objects …

Overview – Severe acute respiratory syndrome Severe acute respiratory syndrome (SARS) is an infectious condition that can cause serious respiratory illness and sometimes death. SARS became a concern in 2003 when an outbreak that began in China spread worldwide causing a global epidemic. The disease was contained and there have …

Overview of Sever’s Disease Sever’s disease or Calcaneal Apophysitis is a painful condition of the heel that occurs in growing children. It happens when the tendon that attaches to the back of the heel (the Achilles tendon) pulls on the growth plate (the apophysis) of the bone of the heel …

Definition Sleepwalking, also called somnambulism, a behavioral disorder of sleep in which a person sits up and performs various motor actions, such as standing, walking about, talking, eating, screaming, dressing, going to the bathroom, or even leaving the house. The episode usually ends with the sleepwalker’s returning to sleep, with …

Description – Staph Infection Staph infection is caused by staphylococcus bacteria, types of germs commonly found on the skin or in the nose of even healthy individuals. Most of the time, these bacteria cause no problems or result in relatively minor skin infections. But staph infections can turn deadly if …