As Canadians prepare for daylight saving time, a scientific debate rages on the health effects of falling back

Clocks falling back this weekend in much of the country will mean more rest and, ideally, less hurry Monday morning.For chronobiologists, researchers who study our circadian rhythms, the end of daylight time and return to standard time in the fall holds a deeper health impact: it better co-ordinates our work and school schedules with what our bodies want to do, which is to follow the sun. Synchronizing our schedules this way is better for our long-term well-being, these experts say.