What type of stretching helps prepare for an activity by doing movements through a range of motion. dynamic
static

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.

it means your tired?

you would have a std. i hope this .