In every species that's been carefully studied to date, sleep or something that looks very much like it seems to be present. Duncan: How far down can we go? Down to bacterium? I mean, how small can we go and still see a near ubiquitous need for something resembling sleep? You know, some people have said that nothing in biology makes sense unless you look at it through the lens of evolution. And so what that means is that sleep perhaps emerged with life itself on the planet and has fought its way through heroically every step along the evolutionary path.

Get the Snipd
podcast app

Unlock the knowledge in podcasts with the podcast player of the future.
App store bannerPlay store banner

AI-powered
podcast player

Listen to all your favourite podcasts with AI-powered features

Discover
highlights

Listen to the best highlights from the podcasts you love and dive into the full episode

Save any
moment

Hear something you like? Tap your headphones to save it with AI-generated key takeaways

Share
& Export

Send highlights to Twitter, WhatsApp or export them to Notion, Readwise & more

AI-powered
podcast player

Listen to all your favourite podcasts with AI-powered features

Discover
highlights

Listen to the best highlights from the podcasts you love and dive into the full episode