How switching the clocks can affect your health

Much of the world adjusts their clocks each spring and fall. In the fall, clocks are fixed on standard time, while in the spring they're moved forward one hour to daylight saving time, or DST.

The rationale behind DST has long been based on energy savings, as the demand for electricity to light homes is related to the times when people go to bed at night and rise in the morning. Studies conduc...