Why is learning considered to be a change in schema, according to cognitive theory?

What would a public health worker most likely encourage a community to do

Take a nutritional supplement during times of stress a. is recommended by al doctors as a stress management technique b. has been scientifically proven to aid in stress management c. only adds to the stress you’re feeling d. can you feel better because you believe it will you

Which is the term used for a drug that increases the activity of the nervous system