Historical Events  Science
Human heart location

Where is your heart?

MMDE: Heart fully left

Current: Heart slightly left

In the 4th Century BC, Aristotle, the Greek philosopher, described the human heart as the most important part of the body.

Many people believe the position is to the left, and are surprised when they learn today it is only slightly so. They also think it's size has changed to twice the one they remember. 

These people remember things like doctors using stethoscopes on their left side when they were children, but nowadays placing it centrally. People being shot in movies also tended to clutch their left side, and even where they were told to place their hands during the pledge of allegiance - because that's supposed to be over the heart.