Share on Pinterest Scientists have found a link between B12 levels and cognitive health in older adults. Milan Markovic/Getty Images Vitamin B12 is needed for the development and function of nerve ...

Children who grow up in stressful environments often have elevated levels of "the stress hormone” cortisol, which can impair cognitive development. New research shows that some children growing up ...

The cognitive domain comprises of six different categories or hierarchical levels known as the Blooms Taxonomy. These six levels are identified as knowledge, comprehension, application, analysis, ...