Anemia can be caused by a diet lacking in which nutritional substances?

if u need the answers look it up on google youll find it trust im just saying this incase no one out : )

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.