Humans have natural cycles for when they are active and for when they sleep. Modern work and school schedules interfere with this, and more studies are showing why there's a possible health risk.
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Articles on time zones
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The original arguments Congress made for 'springing ahead' have been thoroughly debunked. So why are they still being used by legislators today?
What time looks like in different cultures.
Advocates say daylight saving time saves energy and wins wars. But studies show that injuries and illnesses rise when the clocks change. Some states may end the practice; others could make it permanent.
Evidence for a link between breast cancer and artificial light appears to be growing. Do studies showing higher risk of breast cancer the farther west a woman lives in a time zone add to the science?
