**The 2017 Nobel Prize in Physiology or Medicine went to
Jeffrey C. Hall, Michael Rosbash, and Michael W. Young,
for their discoveries of key molecular mechanisms controlling
the circadian rhythm.
Almost everything under the sun follows the rhythms of the sun, a 24-hour cycle hardwired from billions of years of planet Earth spinning around. Humans, animals, plants, flies, fungi, even bacteria, follow such a routine, and it’s called a circadian rhythm
(circa means “around” and dies means “day”).
Specifically, circadian rhythm refers to the result of constant interaction between an organism’s internal biological clocks and environmental cues — most notably, the sun, but also many other factors — a relationship that governs our behavior, hormone levels,