The Vagus Nerve’s Crucial Role in Creating the Human Sense of Mind

The Vagus Nerve’s Crucial Role in Creating the Human Sense of Mind

The original version of this story appeared in Quanta Magazine. It is late at night. You are alone and wandering empty streets in search of your parked car when you hear footsteps creeping up from behind. Your heart pounds, your blood pressure skyrockets. Goose bumps appear on your arms, sweat on your palms. Your stomach … Read more

An Ultrathin Graphene Brain Implant Was Just Tested in a Person

An Ultrathin Graphene Brain Implant Was Just Tested in a Person

In 2004, Andre Geim and Konstantin Novoselov at the University of Manchester in England achieved a breakthrough when they isolated graphene for the first time. A flat form of carbon made up of a single layer of atoms, graphene is the thinnest known material—and one of the strongest. Hailed as a wonder material, it won … Read more

Patients Are Turning to Vibrators to Relieve Their Migraines

Patients Are Turning to Vibrators to Relieve Their Migraines

My friend Jack suffers from the most terrible migraines. But he has an unusual solution. When his migraine starts, he lays down and gently straps a vibrator to the top of his forehead. He swears that it offers instant relief from the pain. Though unconventional, Jack’s idea has historic roots. In 1892, neurologist Jean-Martin Charcot … Read more

I Tried These Brain-Tracking Headphones That Claim to Improve Focus

I Tried These Brain-Tracking Headphones That Claim to Improve Focus

One afternoon I was using the device for a little over an hour when I heard a voice in the headset: “You’ve earned a brain break.” Alcaide says the device can detect when your focus is starting to decline and that this feature is meant to help people avoid burnout. “We can tell you when … Read more

Strange Visual Auras Could Hold the Key to Better Migraine Treatments

Strange Visual Auras Could Hold the Key to Better Migraine Treatments

Exactly why CSD starts, nobody knows. Similarly, plenty of mysteries remain about what activates the pain of migraines. Past studies have proposed that migraine headaches occur when something in the cerebrospinal fluid indirectly activates nerves in the nearby meninges, the layers of membrane between the brain and the skull. Rasmussen’s experiment, led by neuroscientist Maiken … Read more

This Is the Most Detailed Map of Human Brain Connections Ever Made

This Is the Most Detailed Map of Human Brain Connections Ever Made

This image could be hung in a gallery, but it started life as a tiny chunk of a woman’s brain. In 2014, a woman undergoing surgery for epilepsy had a tiny chunk of her cerebral cortex removed. This cubic millimeter of tissue has allowed Harvard and Google researchers to produce the most detailed wiring diagram … Read more

Elon Musk’s Neuralink Is Ready to Implant a Second Volunteer

Elon Musk’s Neuralink Is Ready to Implant a Second Volunteer

A second person will soon receive Neuralink’s experimental brain implant, according to Elon Musk, the company’s cofounder. In a video update on Wednesday, Musk said the surgery is planned to take place in “the next week or so.” The company is making changes to the surgical procedure and placement of the device to avoid problems … Read more

How the Brain Decides What to Remember

How the Brain Decides What to Remember

“There has to be some kind of triage to remember what is relevant and forget the rest,” Zugaro said. “Understanding how specific memories were selected for storage was still lacking … Now we have a good clue.” Last December, a research team led by Bendor at University College London published related results in Nature Communications … Read more

How Not to Get Brain-Eating Worms and Mercury Poisoning

How Not to Get Brain-Eating Worms and Mercury Poisoning

According to the US Environmental Protection Agency, almost all of us have at least trace amounts of methylmercury—the form of mercury we tend to encounter most—in our bodies due to its sheer prevalence in the environment. However, most of the time these levels are too low to result in any health problems. While some of … Read more

We Finally Know Where Neuralink’s Brain Implant Trial Is Happening

We Finally Know Where Neuralink’s Brain Implant Trial Is Happening

Elon Musk’s brain-implant company Neuralink has chosen the Barrow Neurological Institute in Phoenix, Arizona, as the initial study site to test its Telepathy device. The first participant in Neuralink’s study, Noah Arbaugh, underwent a successful procedure at the institute in January to get the device implanted. Known as a brain-computer interface, or BCI, the technology … Read more