Ending Clock Changes? Health Experts Say There's a Winner Between Standard And Daylight Saving Time - ScienceAlert
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Keeping the clocks on summer time all year means lighter evenings, but it also delays winter sunrise by an hour on the clock. People getting up early for work or school spend more of the morning in darkness. A new Canadian analysis concludes that permanent standard time is the better choice for health if seasonal clock changes are abolished, because it preserves earlier access to morning light. British Columbia adopted permanent daylight saving time in March. Alberta and the Northwest Territories have also adopted year-round daylight saving time and will skip the November clock change. In the US, the House passed a bill to make daylight saving time permanent on July 14, and it was referred to a Senate committee the following day. Psychiatrist Raymond Lam of the University of British Columbia and his colleagues assessed the health consequences of the two options: standard time, usually observed in winter, and daylight saving time, which runs an hour ahead. Sleep and circadian rhythms researcher Ralph Mistlberger of Simon Fraser University co-authored the peer-reviewed analysis, which reviewed published research on biological rhythms, sleep, mood, education, and economic effects.
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