Name two organs that are easy to repair using stem cells. what are two organs that are difficult to repair using stem cells?

you aren't worthless, you are a one of a kind person who, deserves happiness like anyone else, you may not get it but everyone deserves happiness. i hope this .

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.