Disruption of biorhythms

What are the consequences for disrupting biorhythms through jetlag?
It takes a long time for the body to resynchronise itself. This means you have to follow you endogenous zeitgebers: staying up longer, adjusting meal patterns and socialising patterns. Jetlag is more severe travelling West to East (USA to UK)

What are the consequences for disrupting biorhythms through shiftwork?
Workers left in a permanent state of jetlag impairing their performance and increasing stress. Also, vigilance and performance is notably lowered.
Research: experimental support from Czeisler in a…