Stories by Karen Wright

Biological Clocks Operate on Many Scales

Whether they're counting minutes, months or years, biological clocks help to keep our brains and bodies running on schedule

Sleep Is the Brain's Way of Staying in Balance [Video]

The connections between neurons get weaker, not stronger, when we sleep—and that keeps brain cells from becoming overtaxed by waking events

Times Of Our Lives

Whether they're counting minutes, months or years, biological clocks help to keep our brains and bodies running on schedule

Times of Our Lives

Whether they're counting minutes or years, biological clocks keep our brains and bodies on time, perhaps even on schedule for death

Times of Our Lives

Whether they're counting minutes, months or years, biological clocks help to keep our brains and bodies running on schedule

Getting the Goats

A national park struggles to rid itself of a charismatic ungulate

Seeing the Forest for the Trees

Biologists crane to see the canopy

Trends in Transportation: The Shape of Things to Go

Automakers turn to high technology in the search for a car that is clean, safe—and fun

Trends in Communications: The Road to the Global Village

Myocardial Infraction?

The evidence on cholesterol is subjected to interpretation

Diluvian Tremens

Policy initiatives could turn the tide on wetland loss

Too much Pressure?

Are deep-water divers risking their bones and brains?

One Hand Clapping

Digital audio is changing film sound. Will audiences notice?

Playing Demigod

Biologists find limits to tinkering with reproduction

Virus de Résistance

Drug-resistant viruses surface in AIDS patients

The Blood-Brain Barrier

More evidence links genes and intelligence

A Breed Apart

Finicky flies lend credence to a theory of speciation

Fertility Rites

Controversy and liability are limiting contraceptive options

Body Shop?

Advertising's infatuation with physiology has cooled

Yeast Meets Est(rogen)

A microorganism responds to a vertebrate hormone