Brain

The Consumer Electronics Show (CES) 2025 took place in Las Vegas, Nevada, this week.

The Eight Coolest Inventions From the 2025 Consumer Electronics Show

A needle-free injection system, a bug-watching garden camera, a wearable that helps with memory lapses and more were unveiled at the annual Las Vegas trade show

The glymphatic system moves a clear liquid called cerebrospinal fluid around the brain to flush out toxic proteins accumulated during waking hours.

In a Study on Mice, Scientists Show How the Brain Washes Itself During Sleep

The brain's waste-removal process is "like turning on the dishwasher," a neurologist says, but common sleep medications may harm it

At the same time as the Romans were building the Colosseum, they were also breathing in high amounts of toxic lead from silver mining and smelting operations.

Ancient Romans Breathed in Enough Lead to Lower Their IQs, Study Finds. Did That Toxin Contribute to the Empire’s Fall?

Using Arctic ice core samples, researchers estimate silver mining and smelting released enough lead during the Pax Romana to cause a 2.5- to 3-point drop in IQ

Researchers calculated that the human brain processes thought at a speed of ten bits per second.

The Speed of Human Thought Is Far Slower Than the Average Wi-Fi, Study Suggests

But the rate that we gather sensory data is 100 million times faster than our thought processes, making our brains champions at filtering information from our chaotic surroundings

Some people are genetically built to require less sleep than the rest of us.

Why Do Some People Thrive on So Little Sleep?

Short sleepers cruise by on four to six hours a night and don’t seem to suffer ill effects

Researchers looked at brain scan data and results from blood tests to search for correlation between certain proteins and brain aging.

Researchers Find 13 Proteins in the Blood That Are Seemingly Linked to Brain Aging

Though experts say more work is needed to understand the findings, this line of study might offer a way to monitor age-related cognitive disorders and target treatment

Stories in a wide variety of scientific disciplines made our list this year.

The Ten Most Significant Science Stories of 2024

From a total solar eclipse that captivated our continent to record temperatures that scorched the planet, these were the biggest moments of the year

Scientists have discovered the strongest evidence yet that healthy vertebrates can have brain microbiomes.

Fish Have a Brain Microbiome. Could Humans Have One Too?

The discovery that other vertebrates have healthy microbial brains is fueling questions about our own brains

Smithsonian magazine’s top science titles this year.

The Ten Best Science Books of 2024

From a deep dive on a fatal space shuttle disaster to a study of a dozen iconic trees, these are our favorite titles this year

"Brain rot," which is now linked to social media overload, first appeared in Henry David Thoreau's Walden in 1854.

'Brain Rot,' the Scourge of the Chronically Online, Becomes Oxford's 2024 Word of the Year

The term refers to "the supposed deterioration of a person's mental or intellectual state" that's linked to spending extensive stretches of time scrolling through low-quality content

The white substance on this fly is a fungus called Entomophthora muscae.

This Parasitic Fungus Turns Flies Into Zombie Insects

The pathogen takes over the brains of its hosts and controls them for its own sinister ends

A new study suggests that among adolescents mental health disorders could be “socially transmitted,” though its researchers could not establish any direct cause.

Is Depression Contagious?

The science about whether mental health conditions can spread socially is uncertain, but exposure to an affected peer can drive awareness

Mark Muhn of Team Cleveland on his way to winning the Functional Electrical Stimulation bike race in the inaugural Cybathlon in 2016. Muhn’s legs are paralyzed; the muscles in them are activated by electric signals from a controller outside of his body.

Bionic 'Pilots' Compete for the Gold at the Cybathlon

In the international competition, people with physical disabilities put state-of-the-art devices to the test as they race to complete the tasks of everyday life

The iridescent abdomen of a cuckoo wasp (Hedychrum gerstaeckeri) looks beautiful when viewed under a microscope.

See 15 Mesmerizing Photos of Hidden Scenes Only Visible Through a Microscope

Winners of the Nikon Small World Photomicrography Competition captured insects, cancer cells, cat claws and more

Scientists traced the history of AMY1, the gene that's responsible for the production of amylase, an enzyme that helps break down complex carbohydrates.

Can't Get Enough Carbs? That Craving Might Have Started More Than 800,000 Years Ago

New research traces the genetic underpinnings of the enzyme amylase, which helps humans digest starches and sugars

Volunteers looked at the original artworks in the museum and posters in the gift shop.

Seeing Vermeer’s 'Girl With a Pearl Earring' in Person Stimulates the Brain More Than Looking at Reprints, Study Suggests

Scientists used EEG headsets, MRI machines and eye trackers to study volunteers' responses to five paintings housed at the Mauritshuis museum in the Netherlands

A pregnant mother’s mental wellness can impact her child’s future physical, mental and behavioral health

Can a Mother’s Mental Health Impact a Baby in the Womb?

Growing research indicates a pregnant woman’s stress level and overall mental well-being can affect fetal and child development, yet access to prenatal mental health care remains inadequate

Researchers mapped all 139,255 neurons in the brain of an adult fruit fly, which are linked by more than 50 million synapses.

Scientists Unveil the First-Ever Complete Map of an Adult Fruit Fly's Brain, Captured in Stunning Detail

The brain diagram, called a connectome, could revolutionize researchers' understanding of the human brain, which has many parallels with a fruit fly's

Microplastics are tiny pieces of plastic that have been found all over the world and in the human body.

Scientists Find Microplastics in Human Brain Tissue Above the Nose

A new study identified the tiny pollutants in the olfactory bulbs of eight cadavers, suggesting microplastics can travel through the nose to the brain

The vagus nerve sprawls from the brain through the body, innervating our organs and managing life support and emotion.

Everything You Wanted to Know About the Longest Nerve in the Body

Like a highway system, the vagus nerve branches profusely from your brain through your organs to marshal bodily functions, including aspects of the mind such as mood, pleasure and fear

Page 1 of 22