How Daylight Saving Time Disrupts Your Body’s Rhythm

"How Daylight Saving Time Affects Your Body"

Daylight saving time starts Sunday, disrupting sleep patterns and potentially increasing health risks like heart attacks and strokes. Adjust gradually for better adaptation.

Emily Johnson10 March 2025Last Update : 10 hours ago

What 'springing forward' does to your body

nypost.com

On March 9, 2025, most of the united states will observe daylight saving time by “springing forward” one hour at 2 a.m. This change can disrupt sleep patterns and has been linked to various health issues, including heart attacks and strokes. Experts recommend strategies to help individuals adjust to the time change effectively.

6 Key Takeaways

Daylight saving time affects health negatively.
Sleep disruption can lead to serious issues.
Fatal car crashes spike after time change.
Gradual bedtime shifts help adjust better.
Health experts advocate for standard time year-round.
Bipartisan efforts to end daylight saving stalled.

Fast Answer: Daylight saving time begins on March 9, 2025, at 2 a.m. in most of the U.S., causing potential health risks such as sleep disturbances and increased incidents of heart attacks and strokes. Experts suggest gradual adjustments to minimize these effects.

Daylight saving time (DST) is observed by many regions across the globe, with its start date varying internationally. In the U.S., it begins on the second Sunday in March and ends on the first Sunday in November. While Hawaii and most of Arizona do not participate, many Americans struggle with adjusting their sleep schedules during this period. Research indicates that losing an hour of sleep can lead to significant health consequences.

Studies show that there is a temporary increase in fatal car accidents immediately following the spring transition due to sleep deprivation among drivers. Additionally, medical studies indicate a rise in heart attacks on the Monday after DST begins, with some evidence suggesting an uptick in strokes for several days thereafter.

The risk of fatal car crashes increases temporarily after springing forward.
Heart attack rates spike on Mondays following daylight saving time changes.
Circadian rhythm disruptions may exacerbate existing health conditions like high blood pressure.

To prepare for DST, experts recommend gradually shifting bedtimes earlier before the change occurs. Exposure to early morning sunlight can also assist in resetting circadian rhythms effectively. Adjusting daily routines may further help mitigate negative impacts associated with this biannual clock change.

Notice: Canadian readers should note that while Canada observes daylight saving time similarly, specific provinces or territories may have different practices regarding its implementation.

The transition into daylight saving time poses challenges for many individuals due to its impact on sleep and overall health. Awareness of these effects can help people take proactive measures for a smoother adjustment process each spring.