This guy, Matt Walker, looks like your average Eurofag, and I could not stand to look at him for more than 2 seconds; but what he had to say was pretty damn interesting, and very related to freedom.
It's only 19:19 in length.
https://youtube.com/watch?v=5MuIMqhT8DM
Published on Jun 3, 2019
Sleep is your life-support system and Mother Nature's best effort yet at immortality, says sleep scientist Matt Walker. In this deep dive into the science of slumber, Walker shares the wonderfully good things that happen when you get sleep – and the alarmingly bad things that happen when you don't, for both your brain and body. Learn more about sleep's impact on your learning, memory, immune system and even your genetic code – as well as some helpful tips for getting some shut-eye.