Akathisia is a movement disorder characterized by an overwhelming urge to move and a subjective…

Air pollution is the contamination of the air by harmful substances, including gases, particles, and…

An airway refers to the passage through which air travels from the nose and mouth…

Airbags are a crucial passive safety feature in modern vehicles, designed to provide a protective…

An air ambulance is a specially outfitted aircraft, either a helicopter or fixed-wing plane, designed…

Agraphia is a neurological disorder characterized by an impairment or loss of the ability to…

Agoraphobia is an anxiety disorder characterized by an intense fear of situations where escape might…

Agitation is a state of extreme emotional disturbance characterized by feelings of restlessness, irritability, and…

Agnosia is a rare neurological disorder characterized by the inability to recognize familiar objects, people,…

An agonist is a chemical substance that binds to and activates specific receptors on cells,…

Aggression is defined as behavior intended to harm another individual who does not wish to…

Ageusia is the complete loss of taste function of the tongue, characterized by the inability…

Age spots, also known as liver spots or solar lentigines, are flat, brown, gray, or…

Postpartum cramping, also known as afterpains, refers to the contractions experienced by the uterus as…

Alpha-fetoprotein (AFP) is a protein produced by the fetus during pregnancy. It is made by…

Aerospace medicine is a medical specialty focused on the health and safety of individuals involved…

Affective disorders, also known as mood disorders, are a group of mental health conditions characterized…

Aerophagia, also known as aerophagy, is a condition characterized by excessive swallowing of air, which…

Aerobic exercise, also known as “cardio,” refers to any physical activity that increases your heart…

An adverse drug reaction (ADR) is an unwanted or harmful reaction that occurs after administration…

An advance directive is a legal document that allows you to provide instructions about your…

Adrenal tumors are abnormal growths that develop in the adrenal glands, which are small hormone-producing…

Congenital adrenal hyperplasia (CAH) is a group of inherited disorders characterized by impaired cortisol synthesis…

Adenosine diphosphate (ADP) is a crucial organic compound involved in energy transfer and metabolism in…

Adjuvants are substances that improve the effectiveness of vaccines in different ways. They have been…

Adjustment Disorder (AD) is a short-term condition that occurs when an individual has an excessive…

Adipose tissue, commonly referred to as body fat, is an essential organ that plays a…

Adhesive Otitis Media (AOM) is a complicated middle ear issue caused by adhesions from previous…

Adhesion refers to the process by which two surfaces are held together by interfacial forces…

Adenovirus are common yet resilient viruses that target the linings of our eyes, respiratory system,…