"Feel" your heartbeat

[Deniel]

Anyone knows the easy way to measure heartbeats ?
What instruments are to be used ? If i dont have such high tech intruments, what 'simplest' ones can I make use of to do the job ?
I wish I can make something like this and draw a graph of it to...err...predict how its going on in some later phases. Heart attack is a sudden "drop" though..
Can you help me ? i am still...
True!
Thanks in advance

[aychamo]

I'm not too sure what you are asking, but you could use your hand and a watch to monitor your heart beat. Measure in beats per minute.