The heart has baffled scientists for centuries, and its inner workings still confuse a lot of people. So Dr. Edmond Hui set out to make a video that would explain it in clear terms once and for all.
In the video above, Edmond Hui retraces how scientists used to think the heart worked compared to how it actually works.
More Must-Reads from TIME
- L.A. Fires Show Reality of 1.5°C of Warming
- Home Losses From L.A. Fires Hasten ‘An Uninsurable Future’
- The Women Refusing to Participate in Trump’s Economy
- Bad Bunny On Heartbreak and New Album
- How to Dress Warmly for Cold Weather
- We’re Lucky to Have Been Alive in the Age of David Lynch
- The Motivational Trick That Makes You Exercise Harder
- Column: No One Won The War in Gaza
Contact us at letters@time.com