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Do Girls Have a Bigger Heart?

Published in Human Biology 1 min read

No, girls do not have a bigger heart. In fact, a female heart is typically smaller than a male heart.

While the concept of "bigger heart" often implies emotional capacity or kindness, in terms of physical size, the female heart is, on average, about one-fourth smaller than the male heart. This difference in size is a normal physiological variation related to overall body size and muscle mass differences between sexes.

Feature Female Heart Male Heart
Relative Size Smaller Larger
Compared to Male ~25% smaller ~25% larger

It is crucial to understand that heart size does not equate to heart function or emotional capacity. Both men and women can have healthy, strong hearts, and the size difference is simply a characteristic physical difference.