The day after we spring forward for DST is causing us all health problems.

Moving our clocks in either direction changes the principal time cue -- light -- for setting and resetting our 24-hour natural cycle, or circadian rhythm. In doing so, our internal clock becomes out of sync or mismatched with our current day-night cycle. This causes things like a rise in blood pressure, car accidents when people are too tired to drive, and more! 

We need a day off to adjust to the new time!