Ending Clock Changes? Health Evidence Favors Permanent Standard Time

A new analysis in the Canadian Medical Association Journal examines whether governments should end twice-yearly clock changes and, if so, whether to adopt permanent standard time or daylight saving time. Research indicates permanent standard time aligns better with human circadian rhythms and may reduce health risks associated with time disruptions. The decision has significant implications for sleep patterns, cardiovascular health, and mental well-being. Both options present trade-offs that policymakers must carefully consider when implementing permanent time systems.

Originally published on
Medical Xpress
Read full article(opens in new tab)Fetched: October 5, 2026 at 10:00 AM



