Question

everyone says heart doesn't takes rest so I have a doubt if it is true then let me say that heart beats 72 times a day after every beat there is a time interval of 1/10 sec so if calculated correctly it takes a rest of at least 1hr a day please comment ur opinion about this
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Answer 1

heart doesnt need a rest because it has a special feature of being myogenic in nature.

Answer 2

72 times a day nhi 72 times a minute on an average for normal healthy person.

two things hai atria and ventricle, ek time pe dono atria contract karta hai toh ventricle relax, jab atria relax toh ventricle contract.

ye jo hum 72 bol rhe hai ye kisi ek ko consider kiya gaya hai i.e. atria or ventricle

ye chalta hi rehta hai without any rest

btw nice question

hope it helps

for more detail do comment.