People who are depressed are more likely to eat chocolate to feel better. which of the following explains this mood change?

the brains of depressed people produce too little serotonin, and eating chocolate increases the amount of this neurotransmitter in the brain.

the perception of a depressed person is negative, and the dopamine in chocolate makes the brain have a positive perspective.

certain memories may be the cause of depression, and eating chocolate effects norepinephrine levels and minimizes the ability to remember.

depressed people have too little acetylcholine, so they feel lethargic, and the caffeine in chocolate gives them energy.

Running and sleep. sufficient sleep is important for adolescents for both their neural and psychological development. despite this, daytıme sleepiness and poor physical and psychological functioning related to chronic sleep disturbances are common. there is a growing body of evidence that exercise is associated with both better sleep and improved psychological functioning sixty participants were recruited from a high school in northwesten switzerlandthey were randomly assigned to either a running group or a control group, 30 to each group the running group ran every moming for a little over 30 minutes on weekdays for a three-week period. all participants used a sleep log for subjective evaluation of sleep, and sleep was also objectively assessed at the beginning and end of the study using a sleep electroencephalographic device that measured quantities such as sleep efficiency and time spent in the four different sleep phases. running was found to have a positive impact on both objective and subjective measures of sleep functioning what are the explanatory variable(s) and the response variable(s)? (a) outline the design of the experiment (b) (c) here are some more details on the treatment and control groups. all participants arrived at school at 7 a. m., and the running group did two laps on the track and then ran cross countrv in groups of at least four people for 30 minutes the control group remained seated at the track, worked on horpework. and interacted with each other. when the runners returned, all participants prepared for school and ate a breaktast that was provided. iwhy do you think the experimenters had the control group arrive at 7 am interact withdassmates and have breaktast together? explain. do you think having the control eroup do these activities is important for the types of conclusion that can be reached? how?

What is naturalistic about chopin's two stories, "the story of an hour" and "a pair of silk stockings"? provide textual evidence to support your claim.

Why did alexander hamilton support high tariffs?