It is hard to believe that the heart beats 100,000 times in a day. But then there are 86,400 seconds in a day. The heart beats about 3.5 million times in a year and in an average lifetime the heart beats more than 2.5 billion times.
It is hard to believe that the heart beats 100,000 times in a day. But then there are 86,400 seconds in a day. The heart beats about 3.5 million times in a year and in an average lifetime the heart beats more than 2.5 billion times.
