text: how do u find out heart rate? for my science proj, i'm doing something with heart rate, but i dun noe how 2 find it. can u help me without recommending any machines or crap? i need to find how much beats per second a heart beats or whatever (per minutes is fine) and how do i "measure" it. thnx you can simply feel our pulse and count.  the carotid pulse's the strongest, just a little to the side of your throat or adam's apple (if u're a guy)  hope this helps=)