I think you may mean a heart rate...
To slow it down you should cool down after your work out. Try walking for a bit after you run and slow down your breathing with deeper, longer breaths.
When you are at rest, or sleeping, your heart beats slower. Because it is beating slower, blood travels more slowly through your body, and therefore more slowly through your lungs. As a result, you breath slower. When you do vigorous activity, your heart beats faster to supply blood to your body cells faster. This causes blood to race through your body and lungs, requiring you to breath a lot faster to keep up with the amount of blood that needs oxygen from your lungs.
Runners have a slower heart rate because the act of running makes the heart stronger... with a stronger heart stroke volume is increased so the heart does not need to beat as much to fulfill its transportation needs
50 heartbeats
the cooler the frog the slower the heart rate, the warmer the faster
slow
Its relaxing so your heart is resting in other words.
The Heart of a Race Tout - 1909 was released on: USA: 29 July 1909
bradycardia
They do not do anything to raise their heart rate.
The heart beats faster due to your bodies response to the stress.
25 seconds
No