See the 16-question Greyson questionnaire on near-death experiences

Psychiatrist Bruce Greyson created a scale to identify and rate NDEs

Researcher Bruce Greyson is one of the world’s leading experts on near-death experiences. This article explores what the field of NDE research has learned over the last five decades, discusses the difficulties of studying such a controversial topic, and outlines what we’ve ruled out as the cause of these events.

Dr. Bruce Greyson on what we know, and how to study, near-death experiences

Considered one of the premier researchers on near-death studies, Dr. Bruce Greyson discusses what researchers know (and don't know) about what happens as we near death, and recounts his decades of observations on the phenomenon.

The oldest medical report of a near-death experience dates to around 1740

In 2014, Dr. Philippe Charlier, a medical doctor and archeologist, found a French medical book from 1740 that described the near-death experience of a pharmacist. Using the Greyson Scale, Charlier found that the incident would have rated at least 12/32, more than high enough to scientifically classify as an NDE by today’s standards.

The ‘paranormal activity’ lab at the University of Virginia

Near-death experiences aren’t the only thing they study at Greyson’s Division of Perceptual Studies. The lab approaches a host of “paranormal” phenomena—like past lives and out-of-body experiences—with the same academic rigor as the physics or economics department.

The body's response to cardiac arrest has been linked to near-death experiences

Most people who report near‑death experiences experience events like out‑of‑body sensations, altered cognition, emotional and spiritual shifts, or even supernatural phenomena, particularly during cardiac arrest. Research suggests many such experiences may be linked to brain-generated sensory distortions that can be experimentally replicated, suggesting a physiological rather than mystical cause.

See the UCLA Loneliness Scale, often used to measure global loneliness

This 20-question survey, first established in the late 1970s and subsequently revised and often adapted, aims to measure the subjective experience of loneliness. Respondents rate various items on a scale of 1 (Never) to 4 (Often). One revision of the test (not included here) offers an abbreviated three-question version that focuses on how often you feel companionship, left out, and isolated.

Examining self-diagnosed synesthesia

A growing number of people on social media claim to have a perceptual condition that lets them smell colors, see music, or taste sounds. But do they really?

Prolonged Grief Disorder has certain recognizable risk factors

This official diagnosis is characterized by intense, daily symptoms of grief a year after the loss of a loved one among adults and faster—around at least six months—for kids and teens. Factors that put people at increased risk of this disorder include being single, attachment anxiety, violent or unnatural death, low education, low income, and multiple losses, among others.

Virtually experience a euthanasia roller coaster

In 2010, Lithuanian artist Julijonas Urbonas came up with a fictional euthanasia coaster to generate conversation about humanely ending life. His idea involved using extreme G-forces on a roller coaster, aiming to give participants feelings of euphoria before death. In reality, the ride would probably be extremely unpleasant.

Are you burned out? Take this quiz

Have you ever wondered if what you’re experiencing is burnout, or just stress? This Psychology Today quiz may help you decide if you need to explore more mental health resources. You don’t have to create an account to take the quiz. Simply answer the questions and provide your ZIP code.

What's your ACE score, and what does that mean for your health?

An ACE score is a way of measuring adverse childhood experiences, which can negatively impact health outcomes. Take this quiz to determine your score and what that means for your health. The Centers for Disease Control and Prevention and Kaiser...

Super-agers: seniors 80 and above with the memory ability of people in their 50s

Studies show the number one indicator of whether someone is a "super-ager" is not diet or genetics, but the extent of their social relationships. Moreover, scans reveal noticeable physical differences in certain parts of the brain in patients with extensive social networks.

Scientists quantify how far from the poles auroras will be visible using the G-scale

The Geomagnetic Storm scale indicates the expected severity of the deformation of Earth's magnetic field based on the amount of energy injected by the solar wind. Solar activity is monitored using various satellites to forecast these storms, which can also be used to anticipate damage and disruption to power systems, radio communications, and satellite navigation.

Personality tests use the Barnum effect, where vague flattery makes generic descriptions feel specific

A 1949 experiment by psychologist Bertram Forer showed that students rated identical, generic personality profiles as highly personalized. This is the same approach used in horoscopes, Myers-Briggs personality types, and fortune tellers. Even well-resourced tests like Myers-Briggs show poor test-retest reliability, with up to half of retakers getting different results.

There’s a lot we still don’t know about goose bumps in humans

Though goose bumps can be associated with changes in skin temperature, the biggest gaps in our understanding are around measuring goose bumps from nonthreatening exposures. These bumps can often occur without our detection, and we have trouble correctly identifying them. The relationship between emotionally induced chills and goose bumps can also be tenuous.

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

50 exit interview question ideas

When an employee leaves a company, it can leave leadership (not to mention their manager) with a lot of questions. Thankfully, that's what exit interviews are for. But if the person conducting the interview doesn't know the work-appropriate way to ask questions, or if they need to ensure they've covered all the bases, this list of more than 50 exit interview questions can help. Read it here.

Understanding the stages of sleep

Do you have trouble keeping the different stages of sleep straight and organized in your mind? Us too. Sometimes it helps to have a straightforward listing of what each stage is and why it’s important. Look no further than this resource from Lumen. It is a basic outline of the four stages of the sleep cycle, along with the brainwaves and attributes that characterize each. If you’re brave enough, test yourself on the built-in quiz!

Determine if you're an ethical true crime fan

True crime entertainment researcher Lindsey Sherrill is obsessed with her field of study. She noticed that some true crime content dove into criminal and justice reform, illuminating forgotten cases, while others turned into exploitative entertainment. So, she developed four questions to reflect on the real-life implications of one's true crime consumption.

Gamma Knife surgery uses incredibly precise, high-energy light to treat patients

A form of brain stereotactic radiosurgery, this non-invasive technology concentrates beams of light onto specific tumors to damage the DNA of malignant cells, killing them. The gamma rays used are in the same part of the electromagnetic spectrum as those produced in nuclear reactions, cosmic ray collisions, and radioactive decay.

Four psychological tools for a happier, calmer life

The perennial debate on how to be happy involves various aspects of life, and one of the most essential is our psychological attitudes toward experiences. This piece lists and explains four basic tools to strengthen your "psychological immune...

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?"

'Jeopardy!' super fans use a specific method to calculate a player's score

In its many decades on the air, “Jeopardy!” has developed a fervent fanbase that likes to play along at home. The Coryat score was developed by Karl Coryat, who appeared on the show in 1996. The equation ignores forced responses on Daily Doubles and Final Jeopardy! Correct responses for Daily Doubles are scored as their natural value.

Test your ETF knowledge

A 10-question quiz from the SEC allows investors to test their basic knowledge about exchange-traded funds and their investing counterparts, mutual funds. Here’s a sample question: Is the past performance of a fund a good indicator of future results? (Hint, the answer is no).

Questioning the results of life on K2-18b

An analysis of the atmosphere of an exoplanet called K2-18b identified the presence of biosignatures—molecules that are created by living things on Earth. This discovery may indicate life exists beyond Earth, but the lack of environmental data complicates the interpretation of results.

Explore key locations in Kurt Cobain's life with this interactive map

The "Grungeology" project maps out key moments, influences, and impacts of Cobain's life in and around Grays Harbor County. Click through the map's many historical spots and learn how Nirvana's band leader navigated his hometown as his fame and music grew.

See these 16 pieces of art evoking phobias of snakes, flying, spiders, and more. 

A researcher recently discovered an interview from 1967 between groundbreaking journalist Joan Didion and the Grateful Dead, years before the band became an institution.

Researchers believe the brain consolidates memories, processes emotions, and plans for the future during dream states

Double world record holder Hunter Ewen helped conquer his fear of balloons, called globophobia, by training to win Guinness World Record titles for balloon inflation.

This poison ivy knowledge quiz—accompanied by photos of the plant's varied forms—may help you identify this common rash-inducing growth.

Search a massive database of over 4 decades of clues from the TV quiz show 'Jeopardy!'

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.

After NASA's Voyager 1 captured Earth as a single pixel as it left the solar system in 1990, astronomer Carl Sagan used the image to reflect on humanity's fragility and the responsibility to protect 'the only world we've ever known.'

See the 25 of the best photos of auroras from around the world.

Neutron stars, the remains of some massive stars after they explode in a supernova, are the densest directly observable objects in the universe.

The first steps to rebuilding your credit score include getting to know exactly what's on your credit report and figuring out how far you are from the '700 club,' or 'good score' range.

As of 2025, the most cited papers in science include a review of graphene, methods to improve image recognition, streamlining electron density calculations, and optimizing protein studies.

Explore what it's like inside a patient isolation unit, used in situations such as treating a patient or suspected patient with Ebola.

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

SpaceX's S-1 or 'prospectus' revealed many previously unknown details about the company, including its unprofitability despite doing $18.7B in revenue in 2025, exactly how many voting shares Elon Musk will have in the company (roughly 85%), and more.

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

The concept of phantom limbs, the perception that amputated limbs are still present, dates back to a French military surgeon in the 16th century.

Clever Hans was a 1900s horse that was believed to be able to solve math equations, tell time, and read and comprehend German, until a psychology student discovered how he got his answers.

At the beginning of the 20th century, a group of young men ate standard American food—replete with food additives like borax and formaldehyde—as part of government research to better understand food safety.

See photos of Meteora, a mountainous site in central Greece, home to 14th-century monasteries perched atop soaring outcroppings.

The 1987 Nintendo video game 'Stadium Events' isn't known for being particularly fun, but its scarcity has made it a highly sought-after item that has sold for up to $35K at auction.

Explore chaos in this simulation of two double pendulums, where small differences in the release angles produce wildly different outcomes.

The Great Salt Lake's distinct dual coloration results from high-salinity organisms that only live in the northern portion and produce a purple protein.

El Niño, Spanish for 'the boy,' was named after Jesus Christ because the phenomenon resembled the weather changes observed around Christmastime.