Changing our clocks is a health hazard. Just ask a sleep doctor
Briefly

Even a one-hour change in the clock can disrupt the body's circadian rhythms, especially when the clock "springs forward."Charlie Riedel/AP Millions of us may lose sleep when clocks "spring forward" by one hour this Sunday, as most states switch to daylight saving time.The time change brings darker mornings and extends light in the evening.
Read at www.npr.org
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