This week parts of Australia are preparing to wind back their clocks to mark the ending of daylight saving time.For a long time the country has been divided about the positives and the negatives of changing the clocks twice a year.Norman and Tegan look into the health effects of this shift – from the impact on sleep to medical procedures and road accidents.References:Basic concepts and unique features of human circadian rhythms: implications for human health | Nutrition Reviews | Oxford AcademicAre Daylight Saving Time Changes Bad for the Brain? | Cerebrovascular Disease | JAMA NeurologyDaylight Saving Time and Acute Myocardial Infarction: A Meta-AnalysisDaylight savings time transitions and risk of out-of-hospital cardiac arrest: An interrupted time series analysisEmbryo transfers performed during daylight savings time led to reduced live birth rates in older patients | Journal of Assisted Reproduction and GeneticsDaylight saving time as a potential public health interventionDoes lowering evening rectal temperature to morning levels offset the diurnal variation in muscle force production?

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