News
-
Health & MedicineDiet sodas may confuse brain’s ‘calorie counter’
Among regular consumers of sugar-free soft drinks, networks that equate sweet flavors with energy intake may grow numb to the real stuff.
By Janet Raloff -
EarthAncient volcanoes destroyed ozone
Prehistoric eruptions gave off huge amounts of a gas that erodes the UV-blocking atmospheric layer.
-
Health & MedicineFish oil components may not benefit everyone’s heart
A six-year study finds that omega-3 fatty acids don't lower heart risk in people with diabetes.
By Nathan Seppa -
LifeYou have grandpa’s chromosome tips
Older fathers pass more gene-protecting DNA to their paternal grandkids.