How Many Heartbeats Do We Get? • It's Okay To Be Smart

Category: Science | Download:

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.

Make a donation

Buy a brother a hot coffee? Or a cold beer?

Hope you're finding these documentaries fascinating and eye-opening. It's just me, working hard behind the scenes to bring you this enriching content.

Running and maintaining a website like this takes time and resources. That's why I'm reaching out to you. If you appreciate what I do and would like to support my efforts, would you consider "buying me a coffee"?

Donation addresses

BTC: bc1q8ldskxh4x9qnddhcrgcun8rtvddeldm2a07r2v

ETH: 0x5CCAAA1afc5c5D814129d99277dDb5A979672116

With your donation through , you can show your appreciation and help me keep this project going. Every contribution, no matter how small, makes a significant impact. It goes directly towards covering server costs.

It's Okay To Be Smart • 2015 - 2016 • 6 episodes •

How Many Heartbeats Do We Get?

How Many Heartbeats Do We Get?

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.

Climate Science: What You Need To Know

Climate Science: What You Need To Know

Learn the basic science of climate change in 24 easy steps.

What's The Deadliest Animal In The World?

What's The Deadliest Animal In The World?

Besides humans, of course :)

There's No Such Thing As Cold

There's No Such Thing As Cold

You've felt cold before. Sometimes it's cold outside. But what if I told you that "cold" isn't real? There's no substance or quantity called "cold" in science. We can't measure the amount of "cold" in something. Instead it's about what's NOT there.

Why Do We Have To Sleep?

Why Do We Have To Sleep?

Why do we sleep? We spend a third of our lives in slumber, but science has yet to determine exactly why we have do it. Here’s a look at how sleep works, why we’re not getting enough sleep, what happens if you DON’T sleep, and an idea about where sleep came from in the first place.

2015 • Health

100,000,000 Years From Now

100,000,000 Years From Now

100,000,000 years from now, a team of alien geologists arrive at a mysterious blue-green planet, and decide to investigate. Here's what they'll find…

2016 • Science

You might also like

Juice: How Electricity Explains the World

Juice: How Electricity Explains the World

Poverty, women's rights, climate change - indeed, many of the world's most pressing challenges - can be explained by answering one simple question: Can you turn your lights on in the morning?

2019 • Science

Sir David Spiegelhalter discusses Thomas Bayes and Ronald Fisher

Sir David Spiegelhalter discusses Thomas Bayes and Ronald Fisher

David Spiegelhalter discusses how the work of amateur mathematician Thomas Bayes and statistician Ronald Fisher helped to shape the current thinking of probability.

S1E5 • People of Science with Brian Cox • 2018 • Science

The Order of the Elements

The Order of the Elements

In part two, Professor Al-Khalili looks at the 19th century chemists who struggled to impose an order on the apparently random world of the elements. From working out how many there were to discovering their unique relationships with each other, the early scientists' bid to decode the hidden order of the elements was driven by false starts and bitter disputes. But ultimately the quest would lead to one of chemistry's most beautiful intellectual creations - the periodic table.

S1E2 • Chemistry: A Volatile History • 2010 • Science

Secrets in our DNA

Secrets in our DNA

Some 30 million Americans have sent their DNA to be analyzed by companies like 23andMe and AncestryDNA. But what happens once the sample is in the hands of testing companies, and how accurate are their results? NOVA explores the power of genetic data to reveal family connections, ancestry, and health risks—and even solve criminal cold cases.

NOVA PBS • 2021 • Science

Where are We?

In this episode, the volunteers attempt to discover where we really are in the universe.

Part 6 • Genius by Stephen Hawking • 2016 • Science

How do you know you exist?

How do you know you exist?

How do you know you’re real? Is existence all just a big dream? Has some mad scientist duped us into simply believing that we exist? James Zucker investigates all of these questions (and more) in this mind-boggling tribute to René Descartes’s "Meditations on First Philosophy."

TED-Ed • Science