Sentences with phrase «whereas high levels of the stress hormone»

Researchers have shown that low and medium levels of the stress hormone, called cortisol, improve learning and enhance memory, whereas high levels of the stress hormone have a bad effect on learning and memory.

Not exact matches

Thus the higher levels of stress hormones in alpha males, the team contends, are probably due to the stress of expending the energy necessary to stay competitive and on top of the hierarchy, whereas low - ranking males are stressed out by social factors such as being the targets of aggression by alpha males.