It is noteworthy that B12 deficiency is also associated with cognitive impairment, memory loss, dementia, and psychosis.

The latest research in the Annals of Neurology suggests that even B12 levels considered "normal" may still be linked to ...

Scientists have found that those with lower B12 levels had slower processing speed, and higher levels were associated with more biomarkers of neurodegeneration.

Learn what you need to more of—protein, girls nights, joy—and what to cut out—anxiety, candy bars, bad relationships—when you ...