nobel prize in physiology or medicine

The work of Americans Harvey J. Alter and Charles M. Rice, and British scientist Michael Houghton has helped save millions of lives, the Nobel Committee said.
Chronobiology delves into everything from jet lag to sleep problems to depression.
The scientists used fruit flies to unlock secrets of human biorhythms.
The scientist was honored for his paradigm-shifting research in the 1990s.
"These two discoveries have provided humankind with powerful new means to combat these debilitating diseases that affect hundreds of millions of people annually."
The trio received the award for their discoveries of cells that constitute a positioning system in the brain, which was described