. The human heart his the size of a fist of an adult fist
.Your heart will beat about 115,000 times a day
.An electrical system controls the rhythm of the heart
.The heart continues to beat even when it is disconnected from the human body
.Laughing is good for the heart because it reduces stress
.If you were to stretch out your blood vessel system it would extend over 60,000 miles
.Death from a broken heart , or syndrome , is possible but extremely rare.
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