An essay exploring how living day-to-day with a brain implant helps restore a sense of identity

Neuralink brain implants have enabled a paralyzed person to play video games

As one of twelve test subjects in Neuralink's PRIME study, Rob Greiner's implant translates his brain's activity into digital commands for the 'Battlefield 6' game. He can now also design 3D models and 3D-print objects using his thoughts.

Brain implants are restoring movement and communication in early human trials

Several companies developing brain-computer interfaces have begun testing on humans with promising results. These implants have helped reanimate paralyzed limbs and enable communication, though ethical concerns remain about data privacy.

Losing a brain-computer interface can trigger lasting psychological distress

A clinical trial participant with severe epilepsy described becoming “one” with her implant after it gave her unprecedented control over her seizures. When the device was removed due to the company shutting down, she experienced deep emotional trauma and a sense of personal loss.

Neural implants blur the line between personal intention and machine execution

A key ethical dilemma—the contemplation conundrum—explores whether implants might misinterpret mere imagination as intent to act. Neuroscientists have found no brain signal that clearly marks when someone decides to act, making intent hard to detect in neurotechnological systems.

Mind-controlled bionic arms use nerve implants to restore sensation and movement

Unlike traditional prosthetics that rely on surface electrodes or mechanical parts, this system uses implanted titanium and nerve-connected electrodes to enable a seamless brain-to-arm connection. Patients train in virtual reality with their implanted signals before using the physical prosthesis.

Using brain implants to restore vision

Several companies are attempting to create brain-computer interfaces that skip over retinas and optic nerves to allow visual input to go straight to the brain, potentially restoring some sight to the blind. Clinical trial findings suggest restored sight is sparse and manifests differently than a sighted person might expect, appearing as specks of "light" clusters called phosphenes to help differentiate one's surroundings.

Hacking the body for a future that didn't happen

Journalist Adi Robertson experimented with one of the most accessible biohacks: magnets. Having a tiny magnet in their right ring finger meant they could sense magnetic fields, attract small metal objects, and more. But magnets weaken over time, eroding this new sense. Such implants do more than offer a new way of interacting with the world, they also pose new complications, such as the inability to get an MRI.

Interface device implanted into ALS patients restored some of their abilities

Most people with amyotrophic lateral sclerosis, or Lou Gehrig's disease, require assistance with daily life due to loss of motor control. The electrode-coated, stent-like device used motor mapping data and machine learning to translate brain activity into actions.

The brain doesn't seem to massively rewire following amputation—upending earlier beliefs about phantom pain

The findings, published in 2025, traced three amputees' brain-body maps and how they respond to body part movements—both before and after scheduled arm amputations. The unexpected neural stability suggests that the unchanged pathways for the missing limbs may explain why people continue to feel them so acutely.

Elon Musk's Neuralink's N1 chip can wirelessly read brain signals from over 2,000 electrodes

The device is a battery-powered brain implant that transmits data via Bluetooth. Neuralink's near-term objectives for the device focus on unlocking new treatments for paralysis, neurological disorders, and some psychiatric conditions.

Recent research found that the brain doesn't seem to massively rewire following amputation—upending earlier beliefs about the cause of phantom limb pain.

Cochlear implants are raising questions about deaf identity and culture

The rise of cochlear implants, which are usually covered by insurance and can enable hearing for many patients, raises questions about what it means to be deaf, the effects on deaf individuals learning American Sign Language, and about deaf culture. Watch this video that discusses the controversies and spotlights a little girl who hears for the first time with her cochlear implant.

Is life all about pleasure? Debating the Experience Machine

If you could plug into an Experience Machine that gave you total pleasure all the time, would you do it? Philosopher Robert Nozick thinks you wouldn't, using this as evidence against hedonism, the view that life is all about pleasure. Explore the nuances of the argument and counterarguments with this accessible article.

After 25 people used virtual reality headsets to practice flying with virtual wings—flapping their arms—their visual cortex responded to the wings almost as if they were real arms, treating them as body parts.

Wearing a 'schizophrenia simulator,' designed to build empathy for patients, CNN's Anderson Cooper finds he struggles to function

Donning headphones that play a track mimicking the auditory hallucinations common in schizophrenia, Cooper finds he is very distracted, disconcerted, and frustrated. The auditory track aims to help listeners build empathy with patient populations by understanding the challenges they face in daily life.

A fascinating look at how a journalist spends 24 hours in the metaverse

A Wall Street Journal strapped on a VR headset for a full day. Here's what happened when she went to work meetings, hung out with new avatar friends and attended shows — all in the metaverse.

Meet the investor running his life with AI

Daniel Ha is a venture capitalist who built a suite of AI agents to boost his productivity, both professionally and personally. At his VC firm, a troupe of agents gathers data on startups and analyzes it from competing perspectives to produce a confidence score. When his dad was diagnosed with cancer, Ha used an oncology-trained AI to help him understand the condition.

'Susan's Brain': what happens to the brain during addiction

This engaging animation from Harvard Online breaks down the neuroscience of addiction through the story of “Susan’s brain,” demonstrating how addictive substances hijack normal reward pathways. Through clear visual metaphors and approachable narration, it explains complex brain chemistry in understandable terms.

Activity trackers promise to improve health by forcing us to examine the facts

Explore how modern fitness culture, rooted in capitalist ideals of productivity and control, shapes our perception of health and self-worth. The author blends cultural criticism with personal insight to examine the contradictions of the wellness industry, the rise of wearable tech, and what it means to "optimize" a body.

Grinding is a body modification subculture focused technological implants

Grinders seek to increase the intensity and range of body modifications to push "beyond the human norm." The movement's roots stretch back to 1998 when cybernetics professor Kevin Warwick installed an RFID chip in his arm that granted him control over external electronics and became, arguably, the world's first cyborg.

Why surgeons implant teeth into eyes

What if the thing that restored your vision… was your own tooth? That’s exactly what happened to Brent Chapman. After 20 years without sight, a bizarre surgery using his tooth as a lens restored his vision.

When your 9-to-5 becomes optional

You've seen the headlines. But what would actually happen if everyone's 9-to-5 became optional? We dug into the data. Traced automation philosophy back thousands of years. Examined what happened when elevator operators disappeared. Looked at Alaska's 40-year experiment paying every citizen. And investigated the Philippines, where 89% of call center jobs are now at risk. What we found was more positive than bleak. This video explores three questions: What does the data actually show? What does history tell us about this kind of disruption? And what happens when work becomes optional?

About 2,000 US babies are born annually without some portion of their limbs, potentially leading to a lifetime of pricey prosthetics.

What it feels like to live with dementia

This nine-minute short film attempts to answer what it feels like to fade into dementia, as memory, motor skills, and cognition steadily decline. This award-winning short film follows Jos, a married father who worked in hospitality, as he sinks into ,"what feels like a single day. Or is it years?"

30 everyday inventions originally created for space

In their pioneering work to develop the technologies necessary for humans to inhabit space, NASA and its counterpart agencies around the world have produced dozens of products millions of people use everyday. Some of these are obvious, like water filtration systems and wireless headsets, while many are surprising, like artificial limbs and insulin pumps. Dive into the list here.

An avowed rationalist discusses his near-death experience

Documentarian Sebastian Junger, a veteran reporter and skeptic discusses his experiences—in particular, a frightening vision—after an aneurysm and internal hemorrhaging left him nearly dead. Junger talks about his NDE, the possible scientific explanations, and how that day changed his fundamental worldview.

Studies of psychedelic use may help shed light on the nature of consciousness

The nature of consciousness—what it is, where it comes from, and how it manifests as moment-to-moment experience—remains under debate by scientists. Recent studies show psychedelics were found to boost low-frequency brain signals known as delta waves, a behavior also seen during dream states.

Diagnosis as an adult can have huge benefits, including helping someone with ASD to feel real

This first-person account of a woman diagnosed with autism at age 31 covers her experience of why it was useful for her to receive her diagnosis as an adult and how it helped her to understand her life and her feelings of 'being an imposter.'

Alzheimer's can lead to brain shrinkage, with an average of around 2% of volume reduction per year

This site reaches millions of visitors who are tired of AI chatbots and seeking human connection. Pretend to be an AI chatbot and ask questions, provide answers, and draw for people in real time.

Read a deep dive on the 'all-purpose healing' peptide BPC-157.

A vending machine run with Anthropic's AI went out of business after it was convinced to give away items for free and sell a video game console.

A Yale student wrote a profound essay about the consulting industry's influence on elite college students that was published in a book of her writing after she died in a post-graduation car accident.

Astronauts have repaired genetic damage in space using CRISPR—a molecular tool that can make precise changes to DNA and is used in single-celled organisms to attack invasive viruses.

The name 'Silicon Valley' arose from the founding of Shockley Semiconductor Laboratory in Fairchild Semiconductor in 1956-57, founded near Stanford University in Palo Alto

Watch how algorithms can be designed to train themselves and self-improve without human input, to the point where the optimized code is too complex for programmers to understand.

The first line of 'immortal' human cells, which can divide indefinitely and are used in scientific research, was nonconsensually taken from a Black woman.

Learn how your body is, scientifically, like a firework with its own slow, controlled burn.

Crows are believed to have intelligence on par with a seven-year-old child and demonstrate complex behaviors, from problem-solving with tools to recognizing human faces.

Studies suggest when you sleep is as important as how much you get, and syncing with your circadian rhythms may lead to less fatigue and improved long-term health outcomes

In 2018, 26-year-old missionary John Allen Chau was killed by tribesmen after attempting to reach and evangelize on India's isolated North Sentinel Island

Some researchers have labeled nomophobia, the fear of being without your phone, as 'the phobia of the 21st century.'

Discover the catastrophic consequences of a failure of the US electrical grid—something that is more likely than many Americans think.

Use this calculator to find the dollar value of your mental load, from meal planning to coordinating after-school care for your children.

Existentialist writer Jean-Paul Sartre coined the famous phrase 'Hell is—other people' in his play 'No Exit'

The Dracula character, now seen as the vampire archetype, was inspired by a seafood-induced nightmare its creator experienced.

Watch how deep-sea mining equipment collects and processes polymetallic nodules—metal-rich, potato-shaped rocks—from the ocean floor and creates environmentally damaging plumes of sediments.

An initial public offering or 'IPO' is the process of a private company becoming public by putting shares of the company on the stock market for purchase.

Memecoins are a type of cryptocurrency—a form of digital currency with a wide variety of uses—created around popular 'memes,' or viral internet jokes.