Jessica just watched an extremely scary video with her friends and is now finding it very difficult to get to sleep, even though she knows that she is very tired. It is most likely that Jessica's sleeplessness is related to increases in the release of
A) melatonin.
B) cortisol.
C) dopamine.
D) acetylcholine.

Question

Quizplus · Accepted Answer

Cortisol is a hormone that is released in response to stress, and watching a scary video can certainly be a stressful experience. Elevated levels of cortisol can interfere with sleep and lead to difficulty falling or staying asleep. Melatonin is a hormone that helps regulate sleep-wake cycles and increase at night to promote sleep, so it's unlikely to be the cause of Jessica's sleeplessness. Dopamine and acetylcholine are neurotransmitters that can affect sleep to some extent, but cortisol is more likely to be the primary factor in this scenario.

Jessica Just Watched an Extremely Scary Video with Her Friends