According to a new study, female night owls had cortisol levels comparable to men. The researcher suggests high cortisol levels could be a biological mechanism which explains higher risk taking in night owls.
A new study reports teenage boys with raised cortisol levels and depressive symptoms are up to 14 times more likely to develop major depression that their peers.
The "hunger hormone" ghrelin, when released during chronic stress, makes the brain more vulnerable to traumatic events. Researchers suggest this could predispose people to PTSD.
Soldiers who suffered TBI as a result of an IED blast are more likely to have pituitary hormone problems than patients with TBI caused by accidents, a new study suggests.
EPFL scientists have proven that light intensity influences our cognitive performance and how alert we feel, and that these positive...
