Humans
We summarize the week's scientific breakthroughs every Thursday.
- Health & Medicine
The weight-loss drug Wegovy lowered heart attack risk in a large trial
Among 17,000 adults, those on semaglutide were less likely to experience nonfatal heart attacks and strokes or death due to cardiovascular disease.
- Health & Medicine
Why Huntington’s disease may take so long to develop
Repeated bits of the disease-causing gene pile up in some brain cells. New treatments could involve stopping the additions.
- Microbes
Evolutionary virologist Daniel Blanco-Melo seeks out ancient pathogens
Daniel Blanco-Melo has reconstructed two viral strains brought to the Americas with European colonizers in the 16th century.
- Psychology
Why scientists are expanding the definition of loneliness
Feeling detached from animals, places and routines can cause loneliness, researchers are learning, which may expand the list of interventions.
- Health & Medicine
The CDC is expanding its disease surveillance of international travelers
Passengers at four major U.S. airports will now be tested for over 30 pathogens through a mix of wastewater testing and voluntary nasal swabs.
- Physics
How neutron imaging uncovers hidden secrets of fossils and artifacts
The technique can complement X-ray scanning and other tools to uncover details of dinosaur fossils, mummies and more.
- Health & Medicine
Brain tissue may be fuel for marathon runners
Myelin, fatty tissue that insulates nerve cells in the brain, may be a renewable energy source for marathon runners and other endurance athletes.
- Anthropology
Surprisingly long-lived wild female chimps go through menopause
Chimpanzees in Uganda are the first known example of wild, nonhuman primates experiencing the hormonal changes, raising questions about how menopause evolved.
- Genetics
Most of today’s gene therapies rely on viruses — and that’s a problem
The next big strides in gene therapy for rare diseases may come from CRISPR and new approaches to delivery.
- Health & Medicine
Blocking an aging-related enzyme may restore muscle strength
Treating old mice with a drug that inhibits a “gerozyme” restored muscle strength, which can diminish with aging.
- Health & Medicine
Newly identified stem cells can lure breast cancer to the spine
A new type of stem cell discovered in mice and humans might explain why cancer that spreads to other body parts preferentially targets the spine.
- Neuroscience
What a look at more than 3,000 kinds of cells in the human brain tells us
A wide-reaching look at the cells that build the brain, detailed in 21 studies, showcases the brain’s cellular diversity and clues about how it works.
