"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 ...

Even when it exists in low levels, testosterone has a big job: In the womb, the hormone triggers the development of the male internal and external reproductive organs. One 2018 study concluded that ...

Normal thyroid-stimulating hormone (TSH) levels generally fall between 0.5 and 5.0 milliunits per liter (mU/L). If your TSH level is higher than 5.0 mU/L it suggests an underactive thyroid, or ...

“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 ...

Normal ferritin levels range from 15-150 ng/mL for females and 15-200 ng/mL for males. High ferritin levels can indicate an iron overload or inflammation. Eating iron-rich foods can help you raise ...

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 ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. This water-soluble vitamin plays a role in a whole bunch of processes in your body, helping produce your DNA, red blood cells, and ...

Add Yahoo as a preferred source to see more of our stories on Google. This water-soluble vitamin plays a role in a whole bunch of processes in your body, helping produce your DNA, red blood cells, and ...