Examine the heart rate to see how long you can live
Lead languages: Does the speed of the heart rate relate to size of the life-span? The scientists have found for a long time, the heart rate such as moles, rabbits of small-scale mammal is very fast, can reach several hundred times every minute, but their life-span is only 1-3 years. On the contrary, the large mammal such as whale is very large in weight, the heart rate is slow, only about 20 times every minute, but its life-span can be up to 30-40 years.
Animal: The slower the heart rate is, the longer the life-span is
The scientists further verify, can find this law in all mammals. What is interesting is, about 500-600 times of heartbeat every minute of hamster, it is 20-30 times that of whale, but its weight is only one of the 500,000 of the whales.
People find, a kind of life-span of tortoise of asking Georgia to draw the handkerchief brother Sri Lankan can be for more than 177 years, the heartbeat is only 6 times its every minute, the heart beats about 560 million times together in all one's life. Surprisingly, all mammals (except people) The heartbeat in all one's life is basically the same in number of times, is probably about 730 million times.
Each kind of animal is big or small, but the heart weight is generally the same with proportion of the weight, all 0.5% - 0.6% of the weight. At present, the precise reason of these phenomena has not been totally expounded yet, but people propose a kind of explanation: The heart rate decides by organism energy supersession demand, observe the biophysics law, organism energy is exhausted, the life just ends, and the heart rate exactly reflects the effective index of the energy supersession of organism.
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