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
- Jane Fonda Champions Climate Action for Every Generation
- Biden’s Campaign Is In Trouble. Will the Turnaround Plan Work?
- Why We're Spending So Much Money Now
- The Financial Influencers Women Actually Want to Listen To
- Breaker Sunny Choi Is Heading to Paris
- Why TV Can’t Stop Making Silly Shows About Lady Journalists
- The Case for Wearing Shoes in the House
- Want Weekly Recs on What to Watch, Read, and More? Sign Up for Worth Your Time
Contact us at letters@time.com