A team of reproductive researchers affiliated with several institutions in France and the U.S. has found that the timing of monthly ovarian cycles in women is mostly likely attributable to the circadian rhythm. In their paper ...
Jet lag, also jetlag or jet-lag, medically referred to as "desynchronosis" is a physiological condition which is a consequence of alterations to circadian rhythms; it is classified as one of the circadian rhythm sleep disorders. Jet lag results from rapid long-distance transmeridian (east-west or west-east) travel, as on a jet plane.
The condition of jet lag may last many days, and recovery rates of 1 day per eastward time zone or 1 day per 1.5 westward time zones are mentioned as fair guidelines.
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