Michael Warren Young (born March 28, 1949) is an American biologist and geneticist. He has dedicated over three decades to research studying genetically controlled patterns of sleep and wakefulness within Drosophila melanogaster.
At Rockefeller University, his lab has made significant contributions in the field of chronobiology by identifying key genes associated with regulation of the internal clock responsible for circadian rhythms. He was able to elucidate the function of the period gene, which is necessary for the fly to exhibit normal sleep cycles. Young's lab is also attributed with the discovery of the timeless and doubletime genes, which makes proteins that are also necessary for circadian rhythm. He was awarded the 2017 Nobel Prize in Physiology or Medicine along with Jeffrey C. Hall and Michael Rosbash "for their discoveries of molecular mechanisms controlling the circadian rhythm".
Michael W. Young was born in Miami, Florida, on March 28, 1949. His father worked for Olin Mathieson Chemical Corporation managing aluminum ingot sales for the south eastern United States. His mother worked for a law firm as a secretary. Despite no history of science or medicine in either of their backgrounds, Young’s parents were supportive of his interest in science and provided the means of scientific exploration through microscopes and telescopes. They lived in an environment close to private zoos, where occasionally some of the animals would escape into their backyard and spark Young's scientific interest.

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