You move more, your pulse is faster.
After exercise your pulse becomes faster. The reason you get exhausted while doing exercise is you can't get enough oxygen into your body.
ya mam said
It doesn't.
when you exercise It rises. And when you rest it drops back down to normal.
No. The resting pulse becomes slower. (Note, the top pulse rate for everybody is about the same ... the "exercise tolerance" comes from how much you can increase from your resting rate.)
An individual can achieve a maximum heart rate (ie pulse rate) of 220-Age. So the case you are mentioning here will acheive a maximum HR of 150 (220-70) during exercise.
A normal pulse rate for a resting person should be around 60 beats per minute. During exercise, depending on what kind of exercise one is doing, a normal pulse should be between 100 and 180 beats per minute.
your heart beats faster in order to pump oxygenated bloodcells to all of your organs.
it rises
You will be fat.
Your heart has to pump more blood through your veins because of the energy you are using to exercise so your heart has to pump faster and harder
Yes, the faster you exercise, the higher the pulse rate. Note: your pulse should and will eventually slow down and return to normal.