Medicine

Leaves from the iboga plant, collected in 1933 from Angola. The psychedelic drug ibogaine can be derived from the plant's root bark.

A Lesser-Known Psychedelic Drug Shows Promise for PTSD Treatment

Ibogaine, derived from a central African shrub, has been used in rituals for two millennia. But in a small study, it appeared to reduce symptoms of PTSD among veterans

Hercules measures 7.9 centimeters from foot to foot, making him larger than a baseball.

Meet 'Hercules,' the Largest Male Funnel-Web Spider Ever Found

Despite belonging to the most venomous arachnid species on Earth, the spider will be using his bite for good in a program to produce antivenom

Matabele ants will tend to the wounds of their nest-mates that have had their legs bitten off by termites.

These Ants Can Diagnose and Treat Their Comrades' Infected Wounds

Matabele ants in sub-Saharan Africa often sustain injuries while hunting termites—and their survival strategy may help humans fight infections, too

The capsule has a gelatinous coating that dissolves in stomach acid.

Engineers Design a Vibrating Pill for Weight Loss That Could Create a Feeling of Fullness

The capsule is the size of a multivitamin, and in an experiment with pigs, it appeared to reduce the animals' appetites

Monarch butterflies' signature white spots could help them fly—and inspire better drones.

Seven Scientific Discoveries From 2023 That Could Lead to New Inventions

Biologists learned lots about animals and plants this year, and their findings could inspire better robots, medicine and environmental technologies

A colored image of an anthrobot. Hairlike structures called cilia enable the bots to move.

Tiny 'Robots' Made From Human Cells Show Wound-Healing Potential

The so-called "anthrobots" can self-assemble and move on their own, and they prompted damaged neurons to regenerate in a recent study

Photographs and other items connected to Florence Nightingale

These May Be the Last Photos Ever Taken of Florence Nightingale

The rare images are among a collection of artifacts connected to the "Lady with the Lamp" that recently sold at auction

Our ten favorite science books of the year covered everything from astronomy to undersea exploration.

The Ten Best Science Books of 2023

From stories on the depths of the ocean to the stars in the sky, these are the works that moved us the most this year

Illustration of the thalamus, a region of the brain linked to learning and memory.

Brain Implants Show Promise for People With Traumatic Brain Injuries in Small Study

Electrodes placed in the brains of five patients led to "profound" improvements in cognitive function, even years after their injuries

Eczema affects almost 32 million people in the United States.

Here's What Can Cause Itchiness, According to New Research

Scientists discovered a connection between a bacteria linked to eczema and an itch-causing enzyme in a study of mice

The monkey "chimera" with two sets of DNA at three days old. Some body parts appear tinted green, because the researchers marked the transplanted cells with fluorescent dye to trace what parts they developed into.

Scientists Created a Monkey With Two Different Sets of DNA

So-called "chimeric" monkeys could help scientists understand human diseases and aid in conservation efforts, but the research raises ethical questions

An Indian cobra found in the farmlands of Kanchipuram, India. The country has the highest rate of snakebite deaths in the world.

An Inside Look at the Effort to Curb Deadly Snakebites in India

With around 58,000 human deaths from snakebites each year in the country, a lot more must be done to save lives

Ketamine and esketamine are the only psychedelics currently being used clinically with eating disorder patients.

Are Psychedelics the Future of Eating Disorder Treatment?

The drugs have been shown to reduce depression and anxiety symptoms and make individuals more flexible in their thinking

Aaron James is now five months out from his whole-eye and partial-face transplant.

Surgeons Perform World's First Whole Eyeball Transplant on Arkansas Veteran

The patient, who suffered a severe electrical accident in 2021, currently has no vision in the transplanted eye, but doctors say he's recovering well

This 15th-century medical manuscript shows different colors of urine alongside the ailments they signify.

Modern Medicine Traces Its Scientific Roots to the Middle Ages

Contrary to popular belief, early medieval doctors relied on rational deduction to understand and treat disease

Patients who are at high risk of lung cancer can get screened with low-dose computed tomography (CT) scans.

Millions More Smokers Should Be Screened for Lung Cancer—Even if They Quit Long Ago

The American Cancer Society released new guidance on who should get yearly scans for lung cancer, the leading cause of cancer death around the world

In 2022, nearly 46 percent of health workers felt burnt out either often or very often.

Health Care Workers Are Burning Out, CDC Says

Depression, anxiety and harassment of health professionals have risen beyond crisis levels, per a new report from the agency

A new generation of blood pressure measuring devices that don’t require an inflatable cuff around the arm may make it easier to manage hypertension.

New Devices Could Change the Way We Measure Blood Pressure

Embedded in a cellphone or in accessories such as rings, bracelets or watches, the novel tools aim to make it easier to manage hypertension

Gene-editing silkworms produced this spider silk.

Genetically Modified Silkworms Can Produce Spider Silk That's Stronger Than Kevlar

The sturdy, biodegradable fibers could one day be used for surgical sutures or armored vests

Temperature varies from person to person and it differs throughout the day.

What's Really the Average Human Body Temperature?

Long thought to be 98.6 degrees Fahrenheit, the measurement is highly personal and varies depending on time of day, among other factors, new research finds

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