Anemia can be caused by either a reduction in the number of red blood cells or a deficiency in hemoglobin levels within the ...

Chest pain can be a sign of a heart attack or other cardiac condition, but it can also be a symptom of problems related to: respiration digestion bones and muscles other aspects of physical and mental ...

A high red blood cell count can occur for many reasons, including excessive cell production, changes in blood volume, or underlying medical conditions. Sometimes, the cause is unknown. Erythrocytes, ...

Mast cell activation syndrome is a condition that causes mast cells to release an inappropriate amount of chemicals into your body. This causes allergy symptoms and a wide range of other symptoms.

Déjà vu is a bit of a mystery. Experts aren’t sure what causes the sensation of having experienced something before, but they have some compelling theories. “Déjà vu” describes the uncanny sensation ...

What Is White Matter Disease? White matter disease is the wearing away of tissue in the largest and deepest part of your brain. The loss of white matter function has a number of causes, including ...

Christy Bieber has a JD from UCLA School of Law and began her career as a college instructor and textbook author. She has been writing full time for over a decade with a focus on making financial and ...

There are many theories about the causes of addiction, the use and abuse of legal and illegal psychoactive substances. Biology, psychology, and social and cultural elements all play a role in the ...

Hair loss can be such a sneaky thing: One minute all strands are reporting for duty; the next, it seems, your ponytail is half the size and…wait, is that a bald spot? And with so many potential causes ...

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In 2016, children and adolescents (1 to 19 years of age) represented a quarter of the total estimated U.S. population 1; reflecting relatively good health, they accounted for less than 2% of all U.S.

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Michael Boyle is an experienced financial ...