"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." While vitamin B12 might not be as buzzy as calcium or an immediately recognizable household name like ...

In older adults, low sodium often results from certain medications, kidney issues, or infections. Because multiple factors may contribute, treatment depends on identifying the underlying cause. Sodium ...

“Normal” levels of vitamin B12 may not be enough to ward off dementia, new research finds. Researchers at the University of California San Francisco studied 231 healthy older adults (averaging 71 ...

Testosterone is a sex hormone that regulates a number of processes in the human body, including fertility, sex drive, bone mass, fat distribution, muscle mass, and red blood cell production.

In older age, low sodium tends to be caused by taking certain medications, kidney problems, or infection. However, there can be multiple causes, and the treatment depends on the cause. Sodium is an ...

—Current WHO diagnostic criteria face scrutiny because of new data on the link between polycythemia vera and low erythropoietin levels. Reviewed by Julia M. Cunningham, MD, Assistant Professor, ...

A new study by Gallup on behalf of the Barbara Bush Foundation for Family Literacy finds that low levels of adult literacy could be costing the U.S. as much $2.2 trillion a year. According to the U.S.

Men with below-normal testosterone levels had a 40 percent higher risk of death from any cause compared with men with levels in the high-normal range. Men with extremely low T were about 60 percent ...

Low iron saturation occurs when the amount of iron in the blood decreases below the recommended range. Measuring transferrin is one way to determine iron saturation. Iron saturation refers to the ...

The currently spreading COVID-19 pandemic has been found to present in various ways, often with respiratory symptoms, but also with significant gut symptoms, skin symptoms, and in critical illness, ...

While vitamin B12 might not be as buzzy as calcium or an immediately recognizable household name like Vitamin C or D, it's just as important for your health—and particularly your brain health. This ...