Hair Cortisol and Salivary Cortisol Reactivity in AdolescentsSalvatore, John J.
The HPA axis is initiated in response to stress, resulting in a hormonal cascade that culminates in the release of glucocorticoids. Glucocorticoids mediate many physiological changes in response to environmental challenges. Ultimately, they provide negative feedback to the brain regions that activate the HPA axis. When secreted chronically, however, glucocorticoids can damage neurons that regulate... read more