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How Many Heartbeats Do We Get?

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 Biology   |   Health   |   Science
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Science really gets my heart going…
Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart
↓ More info and sources below ↓

Follow on Twitter: http://twitter.com/okaytobesmart
http://twitter.com/jtotheizzoe
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Ever wonder how the heart symbol came to stand for the actual heart? And why do we speak of the heart as the seat of love, when love really happens in our brains? Is it true that animals only get a billion heartbeats? This week, we give you enough cool cardiac science to make your heart skip a beat.

Originof the heart symbol: http://www.slate.com/articles/news_and_politics/explainer/2006/02/the_shape_of_my_heart.html
History of silphium trade: http://www.jstor.org/discover/10.2307/4256173?sid=21105598276993&uid=3739256&uid=3739920&uid=4&uid=2

What causes the pain of heartbreak?
http://www.scientificamerican.com/article/what-causes-chest-pains/

The heartbeat hypothesis:
http://en.wikipedia.org/wiki/Heartbeat_hypothesis

The quarter power scaling principle:
http://www.npr.org/templates/story/story.php?storyId=12877984
http://hep.ucsb.edu/courses/ph6b_99/0111299sci-scaling.html
http://www.sjsu.edu/faculty/watkins/longevity.htm



Have an idea for an episode or an amazing science question you want answered? Leave a comment below!

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It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D.
Follow me on Twitter: @jtotheizzoe
Email me: itsokaytobesmart AT gmail DOT com
Facebook: http://www.facebook.com/itsokaytobesmart
Google+ https://plus.google.com/+itsokaytobesmart
For more awesome science, check out: http://www.itsokaytobesmart.com
Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios

Joe Hanson - Creator/Host/Writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen Inc.
Kate Eads - Associate Producer
Andrew Matthews - Editing/Motion Graphics
Katie Graham - Director of PhotographyJohn Knudsen - Gaffer
Dalton Allen - Post-Production Intern

Theme music:
“Ouroboros” by Kevin MacLeod

Other music via APM

Stock images from Shutterstock

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Last week’s video:
What is Déjà Vu? https://www.youtube.com/watch?v=ut8mYGi0YRs

More videos:
Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA
Why Did We Blow on NES Games? https://www.youtube.com/watch?v=4Gf9mtXnJfM
The Science of Game of Thrones - https://www.youtube.com/watch?v=Utu-LpJn3Is
There Was No First Human - https://www.youtube.com/watch?v=xdWLhXi24Mo
How The Elements Got Their Names - https://www.youtube.com/watch?v=mtg9p6A6xnY

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