![]() ![]() Both sleep deprivation and social jetlag have negative effects on physical and mental health, including increased risks for diabetes, obesity, heart disease, depression, and some forms of cancer… DST means that we wake up in darkness and are exposed to more evening light, especially in the western parts of each of the time zones… This makes waking up more difficult for everyone, from school kids to adults, and is likely to worsen conditions such as seasonal affective disorders… Brighter days and darker nights are critical for a healthier population year round. ![]() ![]() ![]() Annie Curtis PhD (Pharmacy & Biomolecular Sciences Lecturer at the Royal College of Surgeons in Ireland) Source DST leads to decreased exposure to morning sunlight… When the exposure to sunlight in the morning is reduced, our biological clocks will drift later and later, making it harder to wake up… DST leads to sleep loss and a mismatch between the body clock and local time (also called social jetlag). Without this morning “light kick”, our body clocks will drift and will no longer perform efficiently across the day. As such, individuals on their commute will be exposed to the morning light that is essential for the daily adjustment of our body clocks to the sun clock. More and more studies show this mismatch can affect our health, leading to chronic fatigue and depression and increased risks of developing diabetes, obesity, heart disease and possibly some types of cancer… Abolishing Daylight Saving Time and remaining on Standard Time will ensure that the sunrise in wintertime will occur before most people travel to work or school. Myriam Juda PhD (Researcher at Simon Fraser University) et al Source With Standard Time, the start of the working day more or less aligns with sunrise and ends with sunset… As long as we can see natural light, our body clock aligns to the sun clock… isconnect between what time our body clock thinks it is and the actual local time has effects that are similar to chronic jetlag. DST also exposes people to more evening light, which further delays the biological clock and makes it more difficult to fall asleep… As experts in circadian biology, sleep, mental health and safety, we understand that removing the time change in favour of permanent Standard Time is the preferred option. When exposure to sunlight in the morning is reduced, our biological clock drifts later, making it harder to wake up and causing an increased mismatch between the body clock and local time (a condition called social jetlag). Our body’s internal biological clock needs exposure to morning light. Gene Block MS PhD (Chancellor of UCLA) & Johanna Meijer PhD (Neurology Professor at Leiden University Medical Center) Source xperts in biological rhythms and sleep unanimously agree that Standard Time year-round is the best option for public health and safety… If DST is kept year-round, sunrise would be later in the winter, leading to decreased exposure to morning sunlight… hildren will have to commute to school in the dark for about a third of the school year. There’s a wealth of data demonstrating that a lack of exposure to light leads to sleep and metabolic disorders, depression and cardiovascular disease, among other ailments… Permanent Standard Time is the only fair and viable option. Humans require adequate morning light so that our internal biological rhythms synchronize properly to the local time. Why Are Sunrises So Important? ack of morning light can have serious impact on our biological clocks, which control the body’s many daily rhythms, including our sleep and wakefulness cycle. ![]()
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