News
-
Bipolar Express: Mental ailment expands rapidly among youth
Diagnosis of bipolar disorder in kids and teenagers has dramatically increased since 1994, raising concerns that this severe mood disorder is being overdiagnosed.
By Bruce Bower -
EarthSonic Sands: Uncovering the secret of the booming dunes
The age-old mystery of sand dunes that produce loud, thrumming noises is explained by a new theory that involves a resonant layer of dry sand.
By Sid Perkins -
Role Change: Mast cells show an anti-inflammatory side
Cells that cause inflammation in allergic skin reactions to poison ivy also produce a protein that subdues the reaction a few days later.
By Nathan Seppa -
Live Wires: Axons can influence nerve impulses
Axons are not simply passive carriers of electrical signals in the brain, but influence how neurons fire.