Sleep Gain, Health Pain: DST's Hidden Cost

Daylight saving time's end on Sunday, November 1, grants an extra hour of sleep, but this change can temporarily disrupt the body's internal timing. According to research from the University of Alabama at Birmingham, different organs like the heart and brain may adjust to the new schedule at varying rates, leading to a brief period of biological misalignment. This can affect crucial bodily functions that rely on synchronized circadian clocks. While the fall transition, which adds an hour, is associated with a roughly 10 percent decrease in heart attacks compared to the spring shift, it's not entirely benign. Disrupted sleep and circadian timing can influence blood pressure, inflammation, and blood glucose levels. Individuals with pre-existing cardiovascular conditions may be particularly susceptible to these sleep disturbances. To help internal clocks resynchronize, experts recommend gradually shifting bedtime and wake times by 15 to 20 minutes later in the days preceding the time change. Exposing oneself to sunlight in the morning and eating breakfast are also advised. Limiting light exposure at night and maintaining consistent sleep habits further support the body's adjustment.