Humans
We summarize the week's scientific breakthroughs every Thursday.
- Humans
Stress turns hair gray by triggering the body’s fight-or-flight response
A study in mice finds stress responses deplete cells that give hair its pigment, making the strand white.
- Genetics
Ancient kids’ DNA reveals new insights into how Africa was populated
Four long-dead youngsters from west-central Africa have opened a window on humankind’s far-flung African origins.
- Health & Medicine
The first U.S. case of a new coronavirus has been confirmed
After confirmation that a new coronavirus is transmissible between humans, U.S. health officials report a first case in Seattle.
- Health & Medicine
Hairy cells in the nose called brush cells may be involved in causing allergies
Some hairy cells in the nose may trigger sneezing and allergies to dust mites, mold and other substances, new work with mice suggests.
- Health & Medicine
Exploding cancer cells can cause serious side effects in CAR-T cell therapies
Blocking a protein caused cancer cells targeted with CAR-T cell immunotherapy to shrink rather than burst, which may help reduce inflammation.
- Health & Medicine
A new drug lowers levels of a protein related to ‘bad’ cholesterol
The next clinical trial will determine if a drug targeting a protein that carries fat and cholesterol reduces the risk of heart attack and stroke.
- Anthropology
Neandertals dove and harvested clamshells for tools near Italy’s shores
The discovery of sharpened shells broadens the reputation of Stone Age human relatives: Neandertals weren’t just one-trick mammoth hunters.
- Microbes
Microbes slowed by one drug can rapidly develop resistance to another
Hunkering down in a dormant, tolerant state may make it easier for infectious bacteria to develop resistance to antibiotics.
- Archaeology
After the Notre Dame fire, scientists get a glimpse of the cathedral’s origins
Researchers will tackle the scientific questions behind rebuilding Notre Dame, and learn more about its history.
- Health & Medicine
What we know — and don’t know — about a new virus causing pneumonia in China
A newfound coronavirus is behind a mysterious outbreak of pneumonia in central China. Experts urge vigilance but say there’s no cause for panic.
- Humans
Homo erectus arrived in Indonesia 300,000 years later than previously thought
The extinct, humanlike hominid likely reached the island of Java by around 1.3 million years ago, a study finds.
- Health & Medicine
Global progress in combating child malnutrition masks problem spots
Low-resource countries are tackling serious childhood malnutrition, national-level statistics show, but a closer look highlights disparities.
