Which one of the following people has the most direct and most cost effective opportunity to avoid developing disease or injury?

a cathy is addicted to cigarettes. all of her friends smoke.
b juan is depressed. his father died suddenly last week.
c meryl has diabetes. her mother had it too.
d paul lives near a coal plant. many days his town has polluted air.

Health and cardio respiratory fitness occurs when the heart is working, at minimum, 50 percent of heart rate reserve. true or false

Mary is 14 year old her resting heart rate is 70 beats per minute. calculate 50% of mary's maximum heart rate to fine her target heart rate

Which statement is false? a. an extinction burst is the complete cessation of the target behavior after the extinction procedure has started. b. extinction procedures should not be used with behaviors that cause serious injury to the subject. c. if the behavior analyst does not have the ability to control the subject's access to reinforcement, an extinction procedure should not be implemented. d. spontaneous recovery of the target behavior will be short-lived, as long as the extinction procedure remains in effect