2007-03-01 08:22:27 · 7 answers · asked by Susan A 1 in Science & Mathematics ➔ Biology
"Your heartbeat, naturally, is by no means constant. The rate can vary from minute to minute, depending on stress and body temperature.
A rate of 72 to 80 beats per minute is generally considered normal for a healthy human being at rest. At birth, the rate is in the neighborhood of 130 beats per minute, with the figure decreasing through adolescence and then showing a slight upswing in old age. Women (and this seems to apply to the females of most species) have a faster heartbeat than men. Clams have the slowest heartbeats of all God's creatures, varying from 2 beats per minute for a clam en repos to 20 for a clam in a state of extreme nervous excitement.
Since the solar year consists of 525,948 minutes and 48 seconds, a quick calculation at the rate of 80 BPM gives us a ballpark figure of 42,075,904 beats per year, give or take a couple mill. A reasonable estimate for the number of heartbeats in a lifetime is about three billion."
Figure your own out from that!
2007-03-01 08:31:51 · answer #1 · answered by Yahzmin ♥♥ 4ever 7 · 0⤊ 0⤋
Take your own heart beat, and the heart beats of at least ten of your 'friends' (one minute measurement for each) ... add them all up and divide by 11 for an 'average' heartbeat per minute.
Then find out the 'accepted death age' of a person with a normal heart span ... that will be in 'years' with maybe a few months added. Then the 'math' gets at least tedious ... add up how many minutes there are in a day (hint: you'll mutiply by 60 (minutes in an hour) and then again by 12 (hours in a day) ... then add up the 'number' of days in a year (plus one day every four years to account for 'leap years) and mutiply that last number by the 'heart rate' ... and you'll have your answer. Hey, you didn't expect me to actually do your homework for you, did you?
2007-03-01 08:44:16 · answer #2 · answered by Kris L 7 · 0⤊ 0⤋
On elementary, a human heart beats a hundred,000 situations according to day — it fairly is approximately 2.5 billion situations interior the traditional existence span. The human heart surely starts beating interior the womb after approximately 5 weeks. At this component, it beats approximately 80 situations according to minute — approximately one hundred fifteen,000 situations according to day. by potential of week 9, a fetus' heartbeat will advance to 195 beats according to minute — especially much 281,000 beats according to day. It progressively slows after that
2016-10-17 01:09:23 · answer #3 · answered by ? 4 · 0⤊ 0⤋
the human heart beats 2 billion times during your lifetime.
2007-03-01 08:27:41 · answer #4 · answered by david s 2 · 0⤊ 0⤋
3 billion
2007-03-01 09:33:00 · answer #5 · answered by Anonymous · 0⤊ 0⤋
a few billion times or so.
2007-03-01 08:26:24 · answer #6 · answered by Adam B 2 · 0⤊ 0⤋
more than one billion
2007-03-01 08:31:37 · answer #7 · answered by Anonymous · 0⤊ 0⤋