💡 A big warning sign of dementia

And how to tell if you're dead.  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌

Join Nautilus TOGETHER WITH SUPERHUMAN Happy Monday, Nautilus readers! A fresh new week calls for a selection of delightful science reads. On offer today: the limits of a city on the moon, five curiosities from medical history, and the Everest of psychedelics. The daily picks: A big warning sign of dementia Your brain is two organs How to tell if you’re dead P.S. We’re looking for Nautilus readers to participate in a quick survey to help make our offering better. Share your thoughts here! 💪 Health > Muscle loss is a big warning sign of dementia. (Read on Nautilus) > This environmental factor is linked to an increase in suicide risk. (Read on The Guardian) > Is RFK Jr.'s end to the "war on protein" downplaying the benefits of whole grains? (Read on Nautilus) 🪐 Cosmos > It’s the youngest known world—by a long shot. (Read at NASA) > What happens when black holes have indigestion. (Read on The Guardian) > Why Elon Musk’s moon cities are tragically flawed. (Read on Nautilus) 🧠 The Mind > You have two brains, not one. (Read on Nautilus) > It’s the Everest of psychedelics. (Read on Nautilus) SPONSOR What is happening with AI today? Superhuman AI knows. AI keeps coming up, but you still don’t know how deep the rabbit hole goes? That's exactly why over 1.5M subscribers read Superhuman AI daily. When you subscribe, you get daily AI news that matters, carefully filtered from thousands of sources so you know exactly what affects your life and your industry. You'll also receive step-by-step tutorials featuring real prompts and workflows that you can use immediately to solve actual problems. Plus, we test and review new AI tools, trying everything to deliver only the ones that drive real results. Best of all, you get all of this in just 3 minutes a day. Subscribe now *Scientific claims made in ads are not researched, verified, or endorsed by Nautilus.  💡 Only on Nautilus > Five curiosities from medical history. > Which sex of mouse should you ask for directions? > How to tell if you’re dead. Unlock them all Today’s Trivia 🧐 True or false: 10 percent of an octopus’s half a billion neurons are in its eight arms. A) True B) False Click here for the answer. SPONSOR THCV: natural focus molecule Skip the caffeine crash and prescription trade-offs. TribeTokes gummies with THCV quiet appetites and sharpen focus using pure, non-intoxicating plant science. Try THCV Today *Scientific claims made in ads are not researched, verified, or endorsed by Nautilus.  ⭐️ What Else We're Reading Why are people still dying from black lung? Here’s NASA’s solution for predicting bad air quality days. Listen to a podcast about whether the AI panic is justified. Want to see some Bronze Age graffiti? How to tell if a kid has COVID or a cold. Fresh Perspectives ❝   I was sure we must know everything there is about the death process already, but when I went looking for evidence of this serotonin spike, I found nothing. Looking into the research on death more broadly, I was shocked at how little we truly understand about this thing that happens to every one of us.   —Consciousness researcher Jimo Borjigin on our lack of knowledge about dying. Subscribe today Inspire a friend to sign up for the Nautilus newsletter. Thanks for reading! What did you think of today's note? 🙂 Great  |  😐 Okay  |  ☹️ Could Be Better   © 2026 Nautilus 3112 Windsor Rd, Ste A-391 Austin, TX 78703, United States Manage preferences | Unsubscribe