Who’s most at risk?
The people most susceptible to the daylight savings time switch typically have pre-existing conditions – sleep disorders characterized by sleep deprivation such as sleep apnea, periodic leg movement disorder, or other concerns such as depression. These pre-existing health problems become magnified due to daylight savings time’s interruption of the circadian rhythm. Insomniacs may also feel the effects. “Daylight savings time exacerbates insomnia because the idea of losing an hour’s sleep makes sufferers quite anxious, and sets them up for poor sleep,” says Carney. The time change may not cause the onset of insomnia, depression, or sleep disorders, but it can often aggravate them.