Humans
Sign up for our newsletter
We summarize the week's scientific breakthroughs every Thursday.
- Health & Medicine
A urine test may predict lung cancer risk
A urine test that reveals levels of two tobacco-related compounds may identify which smokers are most prone to developing lung cancer, a new study finds.
By Nathan Seppa - Climate
EPA says greenhouse gases ‘endanger’ health
Featured blog: New ruling is a likely first step toward federal moves to cut tailpipe emissions of carbon dioxide and more.
By Janet Raloff - Humans
Naps may help infants form abstract memories
Napping critically assists 15-month-olds in remembering the underlying structure of the language adults speak to them, a new study indicates.
By Bruce Bower - Health & Medicine
Certain carbs boost fat burning
Smarter breakfasting will help boost the value of exercise.
By Janet Raloff - Health & Medicine
Seemingly misplaced DNA acts as lenses
Nocturnal animals orient DNA in retinal cells to focus light.
- Health & Medicine
Epilepsy drug might harm fetuses
Young children born to women who took the drug valproate for epilepsy during pregnancy have lower IQ scores, on average, than children whose moms used a different antiepilepsy medication.
By Nathan Seppa - Health & Medicine
Hypoglycemia linked to dementia
Episodes of low blood sugar that require medical attention seem to increase a person’s risk of developing dementia in old age, a study in people with type 2 diabetes shows.
By Nathan Seppa - Humans
An ancient remedy: Bitter herbs and sweet wine
New chemical analyses of wine jars suggest that ancient Egyptians mixed medicinal plants into wine.
- Humans
In teeth, more cracks are better than one
Cracks in tooth enamel, called tufts, distribute force and shield a tooth from fracture, researchers report.
- Anthropology
African pygmies may be older than thought
A new DNA analysis indicates that pygmy hunter-gatherers and farming groups in Africa diverged from a common ancestral population around 60,000 years ago.
By Bruce Bower - Health & Medicine
Touch and sight push each other around
When the fingers feel downward motion, the eyes see upward motion.
- Health & Medicine
Coming: Hard tax on soft drinks?
Some health-policy analysts believe sweetened beverages should be taxed to discourage over-consumption.
By Janet Raloff