Emily Cooke

A new analysis of more than 1,500 papers and 60 types of tissue has revealed the total number of cells in the human body.

Scientists can now create realistic human embryo models in the lab, leading some to suggest that we rethink how we legally define an embryo.

Doctors report an "unusual and spectacular injury" in which a knife blade lodged in a man's belly drifted through his abdomen.

A new analysis of screening tests for four types of cancer suggests that only one actually increases life span, on average. But what do scientists think?

Oxytocin may be responsible for new mothers' heightened ability to see faces in inanimate objects, but more research is needed.

An analysis suggests that annual temperature-related deaths in the U.S. could rise to one-third of the number caused by cancer if global warming hits 5.4 degrees Fahrenheit (3 degrees Celsius).

Nicotine vapes and two drugs called varenicline and cytisine were found to be the stop-smoking aids most likely to help people quit.

Scientists grew early-stage human kidneys inside pig embryos and found the kidneys were "structurally normal" and made up of around 60% human cells.

Using NSAIDs and hormonal birth control together increased the overall risk of blood clots in women in the study, but the researchers stressed that the overall risk is still low.

In a new study, stopping skeletal-muscle cancer cells from making a specific protein forced them to turn into healthy muscle cells.

Vibrio vulnificus infections normally occur in warmer waters in the Gulf Coast, but rising global coastal sea temperatures have made infections in the eastern U.S. more common.

Only 20 cases of stroke caused by being on an amusement park ride have been reported worldwide.

The red worm was alive and wriggling as doctors pulled it out of the woman's brain.

One of the smallest chromosomes in humans, the male sex chromosome is the final one to be fully sequenced.

Fallopian tube "torsion" normally affects women of reproductive age and is extremely rare in children.

An analysis of buffalo mozzarella from two Italian dairies has revealed which bacteria define this beloved cheese.

After a standard dental procedure, a man turned up to the emergency department with bleeding in his brain.

In a mouse study, scientists identified a collection of neurons that regulate sexual behavior in males, and they think humans may have a similar circuit.

A small, proof-of-concept study in monkeys reveals the potential of a one-off gene therapy to treat people with alcohol use disorder who haven't responded to other treatments.

Despite acting on different receptors, psychedelics induce similar "waves" of synchronized electrical activity across the rat brain, potentially explaining their shared hallucinogenic effects.