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A systemic health condition caused by a deficiency of niacin (vitamin B3) is called pellagra. It negatively affects all body structures and organs, and without treatment, it can be fatal. In most cases, people develop pellagra due to a lack of vitamin B3 in their diet (also called primary pellagra). It often occurs in poor […]

A health condition that causes sudden and intense pain in the shoulder and upper arm, followed by muscle weakness, is called Parsonage-Turner syndrome (PTS). While it may last a few days, in some cases, these symptoms can last for weeks or even months. Furthermore, there are multiple treatment options that help ease pain and muscle […]

A rare congenital (present at birth) vascular disorder that causes a tangled cluster of irregular blood vessels is called Parkes Weber Syndrome. However, some people may also develop port wine and one limb that is larger than the other. Furthermore, several complications of this disorder can be life-threatening. Usually, the disease can be slowed with […]

A disorder in which disruptive behaviors or events negatively affect your sleep is called parasomnia. When it occurs, people may walk, talk, or make physical movements to act out a dream. Some people may wake up in fear or be unable to move. In general, there are some treatment options available to address this condition […]

A group of infectious diseases that spread between humans and animals is called zoonotic diseases (also known as zoonoses). These conditions are often caused by bacteria, parasites, viruses, fungi, and prions. People usually get infected this these diseases when they come in contact with infected body fluids, animal bites, drink contaminated water, or eat infected […]

A rare health condition that causes tumors known as gastrinomas to develop in the pancreas or intestine is called Zollinger-Ellison syndrome (ZES). Therefore, tumors produce and release a hormone called gastrin that triggers an overproduction of gastric acid. When stomach acid becomes too much, it may cause ulcers and other serious complications. Moreover, some types […]

A condition in which Zinc levels in the body are reduced is called Zinc deficiency. This is a mineral in the body that is involved in multiple processes. Usually, it occurs when you do not eat enough foods that contain Zinc or have health problems that prevent the body from absorbing it. The most common […]

A health condition caused by a virus that spreads through Aedes mosquito bites is called the Zika virus. These mosquitoes live in different parts of the world. While most adults and children who get this virus develop a mild infection, it is very dangerous during pregnancy because it can pass to the developing baby. Usually, […]

A pouch that appears at the top of the tube that carries the food and drinks from the mouth to the stomach (esophagus) and causes difficulty swallowing is called Zenker’s diverticulum. It often occurs when the muscle located at the top of the esophagus (cricopharyngeus muscle) is not able to relax to allow the food […]

A genetic condition that often runs in families, passed from biological parents to their children, and causes cellular function problems is called Zellweger syndrome (ZS). It often causes serious health problems after birth. These include problems with the kidneys, brain, and liver, difficulty feeding, movement issues, and others. Unfortunately, it is not possible to cure […]