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Why is the heart a symbol of love?

But Why: A Podcast for Curious Kids

But Why is a show led by kids. They ask the questions and we find the answers. It’s a big interesting world out there. On But Why, we tackle topics large and small, about nature, words, even the end of the world. Know a kid with a question? Record it with a smartphone. Be sure to include your kid's first name, age, and town and send the recording to questions@butwhykids.org!

Why is the heart a symbol of love? Why do people draw hearts when they love someone? Why do we draw hearts the way we do when they're nothing like the hearts inside of your body? And do we need a heart to love or does the brain do it? We’re learning all about hearts and symbolism with Thomas and Stephen Amidon, authors of <a href="https://www.goodreads.com/en/book/show/8733933-the-sublime-engine" rel="nofollow" target="_blank">The Sublime Engine: A Biography of the Human Heart</a>.   

Download our learning guides: <a href="https://npr.brightspotcdn.com/53/6c/ea8510c34e71a08a57b489c3ebc8/why-is-the-heart-a-symbol-of-love.pdf" rel="nofollow" target="_blank">PDF</a> | <a href="https://docs.google.com/presentation/d/1AEGCN2xg9rMhVn81Kx8C5Q4e_HV5CELFBKz5MUuEQHM/copy" rel="nofollow" target="_blank">Google Slide</a> | <a href="https://npr.brightspotcdn.com/e2/f2/a9e5628e4501a83895fb008efea8/but-why-173-hearts-transcript.pdf" rel="nofollow" target="_blank">Transcript</a>

<ul>
<li>No one really knows where the heart symbol comes from, but there are theories. One is that the heart shape comes from the shape of the leaves of a now-extinct plant called silphium, which was considered a key component of a love potion in the time of the Romans. Another theory is that St. Valentine used the symbol when arranging secret marriages. Another is that it was simply a guess of what the human heart looked like.</li>
<li>Love and other emotions are actually regulated in the brain, not the heart. Specifically, a part of the brain called the amygdala.</li>
<li>People might partly associate the heart with strong emotions like love because when we get excited to see someone, our heart sometimes beats faster, and we notice our heartbeat. We aren’t really aware of what’s happening in our brain.</li>
<li>The human heart pumps blood to all parts of your body. The heart beats once a second. If you live to the age of 70, your heart will have beat about 2 billion times!  </li>
</ul>

<h3>Resources</h3>

<a href="https://ed.ted.com/lessons/how-the-heart-actually-pumps-blood-edmond-hui" rel="nofollow" target="_blank">How the heart actually pumps blood - TEDEd</a>

<a href="https://www.getepic.com/book/50521616/your-hardworking-heart-and-spectacular-circulatory-system" rel="nofollow" target="_blank">Your Hardworking Heart and Spectacular Circulatory System</a> by Paul Mason

<a href="https://www.weareteachers.com/circulatory-system-activities/" rel="nofollow" target="_blank">Heart and Circulatory System Activities</a>

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Why is the heart a symbol of love?

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