Humans
We summarize the week's scientific breakthroughs every Thursday.
- Neuroscience
Psilocybin temporarily dissolves brain networks
A high dose of the psychedelic drug briefly throws the brain off kilter. Other, longer-lasting changes could hint at psilocybin's therapeutic effects.
- Health & Medicine
This python-inspired device could make rotator cuff surgeries more effective
A new device, modeled after a python’s teeth and grip, could double the strength of rotator cuff repairs and prevent retearing after surgery.
- Health & Medicine
Rogue antibodies may cause some long COVID symptoms
Tissue-targeting antibodies have been a key suspect in long COVID. Now, two studies show that antibodies from patients can cause symptoms in mice.
- Humans
World record speeds for two Olympics events have fallen over time. We can go faster
The human body can go faster in the 100-meter dash and the 50-meter freestyle. But to reach full potential, our technique must be perfect.
- Space
A Dune-inspired spacesuit turns astronaut pee into drinking water
The spacesuit design collects urine, filters it, adds electrolytes and stores the cleaned water for the astronaut to drink.
- Health & Medicine
Bird flu has been invading the brains of mammals. Here’s why
Although H5N1 and its relatives can cause mild disease in some animals, these viruses are more likely to infect brain tissue than other types of flu.
- Health & Medicine
Breastfeeding should take a toll on bones. A brain hormone may protect them
The hormone CCN3 improves bone strength even as breastfeeding saps bones of calcium, a study in mice shows.
- Health & Medicine
How doctors can help demystify birth control amid online confusion
There’s a larger takeaway from some social media content about hormonal birth control side effects: People aren’t getting the information they need.
- Health & Medicine
Bird flu viruses may infect mammary glands more commonly than thought
H5N1 turning up in cow milk was a big hint. The virus circulating in U.S. cows can infect the mammary glands of mice and ferrets, too.
- Health & Medicine
Some people have never gotten COVID-19. An obscure gene may be why
A trial that purposely exposed volunteers to COVID-19 revealed key immunological differences that may explain why some people can dodge SARS-CoV-2.
- Health & Medicine
A bizarre video of eyeballs illustrates our pupils shrink with age
Pupil size can decrease up to 0.4 millimeters per decade, hinting at why it can be increasingly harder for people to see in dim light as they age.
- Humans
Does social status shape height?
A controversial idea drawing on findings from the animal kingdom suggests there’s more to human stature than genetics and nutrition.
