How turning the clocks back an hour can affect your health

Health & Fitness
1 Nov 2025 • 7:11 AM MYT
The Independent
The Independent

The world’s most free-thinking newspaper

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  • Most of the United States will revert to standard time on Sunday as daylight saving time ends, allowing for an extra hour of sleep.
  • A new study from Stanford University suggests that switching between daylight saving and standard time is the worst option for health, with permanent standard time being slightly better.
  • Health organizations, including the American Medical Association, have long urged the adoption of standard time year-round/
  • The twice-yearly time change can disrupt the body's internal clock, potentially leading to health issues such as increased car crashes and heart attacks, particularly after the spring switch.
  • While a bill to make daylight saving time permanent has stalled in Congress, experts advise getting morning sunlight to help reset the body's circadian rhythm during the transition.

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