Daylight saving time (DST) has its critics. "Springing forward" one hour in March not only leaves many of us feeling groggy for a few days, it also wreaks havoc on some of our bodies—possibly in very serious ways.
For example, a Swedish study found a significant increase in the number of heart attacks—especially for women—in the first three days after DST. The researchers in the study are quick to blame the sleep deprivation that happens alongside the spring time change (as opposed to the version in the fall that gives us an extra hour). They also point out that most adults aren't getting enough sleep no matter what time of year it is.