News
- Health & Medicine
Vitamin may guard against mental decline
The B vitamin niacin may protect people against Alzheimer's disease and other forms of mental decline.
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Brain protein peps up and soothes rodents
A recently identified brain hormone increases wakefulness and appears to suppress fear when it's injected into rodents.
- Health & Medicine
Bright nights kindle cancers in mice
Data from mice subjected to constant illumination suggest that artificial light may increase risks of lung and liver cancers and leukemia.
- Animals
Policing egg laying in insect colonies
Kinship by itself can't explain the vigilante justice of some ant, bee, and wasp workers.
