Tired of Jet Lag? This App Will Help Reset Your Clock
From the Wired Magazine website
Here on Earth, our sleep is synchronized with the sun. Our bodies stir at daybreak and slump at nightfall, the light acting like a metronome for our delicate body clocks. This biochemical ebb and flow is known as our circadian rhythm, and it repeats every 24 hours.
Go into space, though, and you get a sunrise or a sunset approximately every 45 minutes. Astronauts on the International Space Station loop around our planet so fast it creates a cycle of light and dark that’s disruptive enough to an astronaut’s biorhythms to send them teetering into insomnia or exhaustion.
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