One way in which exercise is believed to improve cognitive functioning is by increasing levels of ____________ in the brain.
A)cortisol
B)brain-derived neurotrophic factor (BDNF)
C)oxytocin
D)norepinephrine

Question

Quizplus · Accepted Answer

Brain-derived neurotrophic factor (BDNF) is a protein that promotes the growth and survival of neurons in the brain. Exercise has been shown to increase the production of BDNF, which may lead to improved cognitive function. Cortisol is a stress hormone that can impair cognitive function at high levels. Oxytocin is a hormone involved in social bonding and not directly related to cognitive function. Norepinephrine is a neurotransmitter that is involved in the fight or flight response and can enhance attention and memory, but its levels are not directly increased through exercise.

One Way in Which Exercise Is Believed to Improve Cognitive