The text suggests that the beginning and ending of the period of middle adulthood is defined by a variety of cues. Which of the following stage-defining cues is the best example of a SOCIAL cue?

Researchers find that a chemical in a recently discovered rainforest plant significantly reduces appetite in laboratory mice. other researchers then make the chemical into a drug and test it to see whether it helps obese people lose weight. this type of research is called

a. bedside b. bench c. translational d. communication

Sam has persistent and distressing thoughts of germs; he cannot eat without washing his hands three times before and three times after every meal. Although his hands are raw from the washings, he is overwhelmed with anxiety if he doesn't wash using this method. Sam's problems illustrate ____

a. posttraumatic stress disorder c. agoraphobia b. obsessive-compulsive disorder d. generalized anxiety disorder