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Medicine

Microplastics have been found throughout the human body.

Microplastics Have Been Linked With Myriad Human Health Problems. Scientists May Have Finally Figured Out How They Harm the Body

Lab experiments suggest that tiny bits of plastic can react with water inside us to produce highly reactive molecules. They can lead to damaging oxidative stress and inflammation

Physician Joseph Bell (left) inspired Sherlock Holmes (center, as portrayed by actor Basil Rathbone), the detective created by writer Arthur Conan Doyle (right).

Arthur Conan Doyle Based Sherlock Holmes on a Real-Life Scottish Surgeon Who Used Deduction to Diagnose Patients and Investigate Crimes

A new book chronicles the exploits of Joseph Bell, an Edinburgh lecturer whose lessons sparked the creation of the world’s most famous detective

"Time Team" archaeologist Carenza Lewis helped supervise the dig.

Cool Finds

Volunteers Are Helping Unearth One of England’s Oldest Leprosy Hospitals, Giving a Glimpse Into How Victims of the Disease Were Treated in Medieval Times

Researchers believe that the Hospital of the Holy Innocents, founded in the 11th or 12th century, may have had “little houses with a little yard” for up to 20 people with leprosy. “You’d need to have resources to get in here,” one archaeologist says.

An early start to the season doesn't necessarily mean it'll be a more severe one than usual, according to health professionals.

Flu Season Started Early in Parts of the U.S., and Experts Say You Should Consider Getting the Seasonal Jab ASAP. Here’s What to Know

The season usually starts in October or November. But some western states, including California, Washington, Alaska and Hawaii, began seeing a rise in flu cases as early as August

Heiner Linke, chair of the Nobel Committee for Chemistry, explains the work of Henri Kagan and Kenso Soai, the 2026 winners of the Nobel Prize in Chemistry.

Two Chemists Win Nobel Prize for Unraveling a Mystery of Molecular ‘Handedness,’ Helping Drugmakers Develop Safer Medications

Many molecules come in two mirrored forms—like left and right hands—but living organisms generally contain only one. However, chemists couldn’t figure out how to make just one version in the lab. Henri Kagan and Kenso Soai share the prize for their work solving the puzzle

The bacterium Yersinia pestis causes the plague. 

Employee of a Russian Anti-Plague Lab Dies of Pneumonia, Sparking Concerns Over the Disease Behind the Black Death. Here’s What to Know

No official cause of her pneumonia has been confirmed, and Russian health officials say that none of the deceased individual’s close contacts tested positive for the plague. Pneumonic plague is a rare, deadly form of the disease

Most previous brain-computer interfaces have focused on speech or movement, rather than both simultaneously.

This Brain Implant Allows People With Paralysis to Speak and Gesture at the Same Time Via a Mind-Controlled Virtual Avatar

The experimental technology is still in the early stage and was fully tested in just two participants. But it could one day help people with motor problems communicate with more nuance or help them control robotic prosthetic limbs

Optogenetics works like a precise, light-controlled switch for nerve cells in the brain.

Trio of Scientists Wins Medicine Nobel for a Method to Turn Nerve Cells On and Off With Light, Helping to Unravel the Brain’s Mysteries

Karl Deisseroth, Peter Hegemann and Georg Nagel received the 2026 award for their contributions to a revolutionary technique in neuroscience called optogenetics, which allows researchers to examine precise connections between neuronal activity and behavioral outcomes in live animals

With so many food products now touting added protein, consumers have been left wondering how much is really necessary.

Is More Protein Always Better? Despite the Craze Around the Nutrient, Research-Backed Evidence About Its Benefits Is Complicated

It can be difficult to see through the array of flashy, protein-packed products and determine whether you need more of it—and which foods to consume to get it. We asked health experts about the benefits and drawbacks of chasing protein

MRI scanners create detailed images of the inside of the body using a powerful magnet and radio waves.

MRI Scans Might Reveal Signs of Alzheimer’s Disease Seven Years Before a Telltale Marker Appears in the Brain

Not all researchers are convinced that the brain changes detected via MRI are robust enough to become a diagnostic tool. But the findings could help researchers better understand the mechanisms that drive the neurodegenerative disease

Researchers tested the battery in an RFID tag that can be rolled up in a capsule and swallowed. It can then transmit information about the digestive tract to a reader outside the body.

Scientists Invent a Digestible, Paper-Based Battery That Can Power Swallowed or Implanted Medical Devices

So far, the technology has been tested only in pigs. If it’s successful in humans, it could one day power tools that monitor your health or deliver drugs or electrical currents inside the body

The story of the bedpan is about love and hate, germs and illness, dignity and shame, and, inherently, urine and feces.

The Humble History of the Bedpan

Over the past few centuries, inventors have tweaked the design of the receptacles here and there, but overall, not much has changed about the dependable medical supply

Using their new knowledge, the researchers became the first to successfully coax human stem cells into becoming hindbrain motor nerve cells.

Scientists Say the Human Brain Might Be Made of Two Distinct Nervous Systems That Got Squished Together

Two separate types of progenitor cells give rise to the front and back of the organ, according to a new study. The findings can help researchers study human diseases that affect the hindbrain, since its nerve cells have previously been difficult—if not impossible—to make in the lab

Men ages 55 and older were disproportionately affected, the researchers found.

Alcohol-Related Cancer Deaths Have More Than Doubled in the United States Over the Past 30 Years, Study Suggests

While scientists say their findings don’t necessarily mean you need to cut alcohol from your life entirely, knowing the potential risks—especially if you’re already at an elevated risk of developing cancer—can help guide your decisions

A side view of a "xenocortical" mouse brain, with the grafted human tissue seen in green and red.

Scientists Created Mice With Half-Human Brains. The Hybrid Animals Could Revolutionize Our Understanding of Neurological Disorders

Our brains and their associated diseases are notoriously hard to study. So researchers developed an animal model with a cortex—the brain’s outer layer—grown from human-derived cells

The maxilla and molars of an individual who lived between 16,000 and 25,000 years ago

New Research

Archaeologists Discover the World’s Oldest Evidence of Habitual Drug Use in the Teeth of a Hunter-Gatherer Who Lived Up to 25,000 Years Ago

This individual may have regularly sucked on betel nuts, known for their mind-altering properties, leading to worsening dental disease. Researchers say the discovery sheds light on addiction in prehistoric environments

Surgeons Leonardo Riella (left) and Tatsuo Kawai (right) talk to patient Tim Andrews after he received a genetically modified pig kidney in early 2025.

A Genetically Modified Pig Kidney Kept a Man Alive for a Record Nine Months, Allowing Him to Wait for a Donated Human Organ

The animal organ kept Tim Andrews off dialysis for 271 days and represents the first time a pig kidney has been used as a bridge to human organ transplantation

No effective treatments currently exist for chemotherapy-induced peripheral neuropathy.

A Psychedelic Compound Found in ‘Magic’ Mushrooms Might Prevent Debilitating Nerve Damage and Pain Caused by Chemotherapy

A study in mice and human tissue suggests psilocybin protects against peripheral neuropathy, a common side effect of chemotherapy. The findings are so promising that researchers are starting a mid-stage clinical trial this year

GLP-1 drugs, medications that are self-injected to support weight loss and lower blood sugar, helped peptides become mainstream.

Peptides Are All the Rage, Promising Miracle Cures and Makeovers Delivered by Injection. How Did We Get Here?

Experts say the peptide craze is part of a broader phenomenon, as patients look beyond the regulated health system to address problems that doctors have struggled to treat

Since calorie restriction is known to slow aging, researchers wanted to know if GLP-1s—which curb appetite—could do the same.

GLP-1 Weight-Loss Drugs Can Slow Aging and Extend Life Span, Mouse Study Suggests

Older female mice—equivalent in age to 60-year-old women—given daily injections of the active ingredient in Ozempic lived about 12 percent longer than animals that didn’t receive the drug

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