How a Daylight Saving Time Change Could Impact Your Body
Summary
Congress may soon make daylight saving time permanent in the U.S., meaning clocks would no longer change twice a year. Health experts warn that this change could disrupt natural body rhythms and lead to long-term health issues like heart disease and obesity because people would get less morning sunlight.Key Facts
- The Sunshine Protection Act passed the House with 308 votes in favor and 117 opposed, and it now goes to the Senate.
- If the Senate approves, President Donald Trump has said he will sign the bill into law.
- Nearly all states except two would stay on daylight saving time year-round, with evenings having more sunlight and mornings less.
- Studies show people do not generally exercise more just because of extra evening daylight; some existing exercisers may shift their workout time.
- Health experts report more obesity and heart disease rates with permanent daylight saving time.
- People tend to never fully adjust their sleep cycles to daylight saving time because it conflicts with the body’s natural clock, called the circadian rhythm.
- Less morning light and later sunsets can cause difficulty falling asleep and waking up on time.
- Poor sleep increases risks of heart issues, weight problems, weaker immune response, and possibly higher cancer rates.
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