Medical science is a wonderful thing, but it’s unfortunately not something that most of us take time to really reflect on.

When we do, though, it’s almost impossible to not take a step back and gasp in awe of what we’re capable of accomplishing with modern medicine.

For example, I bet you’ve never given much thought to how doctors keep transplant hearts “alive.” A special machine is required and sure, it’s cool when you think about it…

But seeing that machine in action? I guarantee it will take your breath away.

Warning: If you’re not so comfortable with blood, you might want to skip this video.

If we’re able to accomplish this in 2016, just imagine the medical breakthroughs that will be happening 10 years from now…