In a study published today in Science, researchers say they have solved a climate enigma — the inexplicable surge in global temperature in 2023, rising faster than climate models predicted. By ...

"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 ...

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 ...

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” 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 ...

Most healthy people get enough magnesium from food, but certain conditions—like diabetes, gastrointestinal disorders, or aging—can lead to low magnesium levels over time. Mild magnesium deficiency may ...

Fluoride exposure appears to slightly decrease IQ scores in children, a new federal meta-analysis has concluded -- but not at the low levels recommended for U.S. drinking water. Fluoride in drinking ...

New research published in the New England Journal of Medicine has explored the dangers of lead poisoning and shown that low-level lead poisoning is still a significant problem today. Chronic lead ...

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 ...