amazing facts about your heart

Fact 7

Amazing Facts About Your Heart

Random human heart facts, including surprising statistics, revolutionary discovers, and diseases.
Fact 7
The first heart cell starts to beat as early as 4 weeks.

Fact 15
Fact 17
Fact 18
Fact 22
Fact 20
Fact 9
Fact 19
Fact 7
Fact 11
Fact 16
Fact 8
Fact 3
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