Do astronauts experience jet lag?

Not in the conventional sense. Jet lag occurs because the light-dark cycles which regulate our circadian rhythms have been altered as we change time zones. When going into space, more than a time zone changes. The whole light-dark cycle ceases to exist as it does on earth. read more

Jet lag occurs because the light-dark cycles which regulate our circadian rhythms have been altered as we change time zones. When going into space, more than a time zone changes. The whole light-dark cycle ceases to exist as it does on earth. Astronauts experience a new sunrise every 90 minutes which is the amount of time it takes to orbit the earth. read more

Jet lag is exhausting, disorientating, and can even make you lose your appetite and libido. According to Air & Space magazine the term “jet lag” may have been first coined in February 1966."If you're going to be a member of the Jet Set and fly off to Katmandu for coffee with King Mahendra," wrote Horace Sutton in the Los Angeles Times,"you can count on contracting Jet Lag, a debility not unakin to a hangover. read more

You would predict that the circadian rythyms for these astronauts would Follow the extended cycle set by the sun an fall asleep once every 26 hours Some researchers suggested that our 24-hour sleep/wake cycle may partially be a response to a world where the sun rises and sets on a 24-hour cycle. read more