Pain killing drugs derived from opium are known as: ~stimulants ~narcotics ~hallucinogens ~depressants

Yes Narcotics is the right answer because it is a pain killing drug derived from opium.

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.

football or basketball players.