Clues to Jet Lag in Brain of a Fly

A plane ride across time zones can throw off your biological clock, sometimes for days. Fruit flies can suffer from jet lag, too. A new study of their brains reveals why, and suggests ways we humans can avoid it. In lab experiments, researchers at the University of California, Irvine, removed the brains of genetically-engineered fruit flies and kept the brains alive in petri dishes. They off-set their circadian rhythm by two hours using pulses of light. Light is the most powerful...

© La Voix de l'Amérique - mercredi 11 mars 2015