The Cover Story Your Brain Writes
A man whose brain has been split in two is shown a snowy scene — but only his silent right hemisphere sees it. His left hand points to a shovel. Asked why, the speaking half of his brain answers instantly: "the shovel is for cleaning out the chicken coop." The snow was never seen. The reason was invented on the spot — and he believed it.
The Ozempic Brain Signal
The drug that changed how the world eats just showed up in a dementia study. A 25-protein blood score climbed slower on semaglutide than on placebo across 2,970 older adults - and Hacker News spent 266 comments arguing about what that actually proves.
The Man Who Was No Longer Gage
In 1848, a thirteen-pound iron rod shot through a railroad foreman's skull. He survived — and walked and talked within minutes. But his friends said he was 'no longer Gage.' The accident became the first clue that your personality lives in a specific piece of your brain.
The Love Hormone Lied to Us
A nasal spray that makes strangers trust you with their money sounded too good to be true. It was. Oxytocin was crowned the 'love hormone' — then the replication failed, and the molecule turned out to be something stranger: a social amplifier that bonds you to your tribe and pushes everyone else away.
Your Brain Is a Liar (and Your Mouth Is Worse)
In 2008, Frito-Lay tested a Cheetos ad that everyone said they hated. Their EEG brain scans told a completely different story — and the ad became a hit. Welcome to neuromarketing.
Serotonin: The Happy Molecule That Isn't
Serotonin was discovered twice — once in the gut, once in the blood — and we've been getting its story wrong ever since. The 'happiness molecule' has almost nothing to do with happiness.
You Don't Actually Like What You Want
Dopamine is not the pleasure molecule — it's a prediction error signal that makes you want things you don't actually enjoy.