How Switching The Clocks Can Affect Your Health

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 conducted by the U.S. Department of Transportation in 1975 determined that moving clocks ahead one hour could save a small amount of energy each day.

Research suggests that a one-hour time change twice a year can significantly throw off humans' internal clocks. A report...