When people overestimate their level of intelligence, they have some pretty obvious behaviors. Here are 11 everyday ...

High TSH levels usually mean the thyroid is underactive, which is called hypothyroidism. TSH levels can change due to factors like age, sex, and pregnancy. TSH influences thyroid hormones that control ...

While many people praise a person’s intelligence and craft high IQs as inherently superior, there are a number of skills that low-IQ people and performers do incredibly well, from creativity to ...

“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 ...

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 ...

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 ...