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19019
From my observations of men and women, I think men crave meat more than women do, whereas women crave pastries more than men do. If the team would offer chocolate éclairs, the PET scans might show more prefrontal cortex activity in women’s brains, less in men’s. Since men’s brains showed more, I suspect the liquid […]
- Physics
Heightened Resistance: Sharper shaft points to smaller bits
Scientists have exploited a method for detecting the orientations of magnetic fields to achieve a remarkable leap in detector sensitivity.
- Earth
Teenage Holdup: Pollution may delay puberty
A new study of adolescents suggests that widespread environmental pollutants such as PCBs and dioxins may delay sexual development.
- Materials Science
X Rays to Go: Carbon nanotubes could shrink machines
A new type of X-ray machine operates at room temperature by producing X-ray-generating electrons with carbon nanotubes instead of traditional heated metal filaments.
- Health & Medicine
Sex, smell and appetite
A study of sexual dysfunction in mutated mice may help explain the connection between smell and appetite.
- Health & Medicine
Hunger hormone gone awry?
People with an inherited form of obesity caused by constant hunger pangs have higher-than-normal blood concentrations of ghrelin, a hormone believed to boost appetite.
- Physics
Twice-charmed particles spotted?
Exotic cousins of protons and neutrons known as doubly-charmed baryons may have made their laboratory debut.
- Agriculture
Killer bees boost coffee yields
Even self-pollinating coffee plants benefit substantially from visits by insect pollinators.
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Caregivers take heartfelt hit
Older persons experience elevated systolic blood pressure for at least 1 year after a spouse with Alzheimer's disease enters a nursing-care facility or dies.
- Materials Science
Spring in your step? The forces in cartilage
Researchers are uncovering the role of molecular forces in cartilage's ability to resist compression.
- Health & Medicine
Appetite-suppressing drug burns fat, too
An experimental drug seems to assail obesity through dual biological actions.
- Physics
Double or Nothing
The hunt for a rare, hypothetical nuclear transformation known as neutrinoless double-beta decay may answer one of the most urgent questions in physics today: How much do elementary particles called neutrinos weigh?
