10/01/2026
Millions of people work overnight shifts. And what it does to the body over time is something most of them have never been told.
Your circadian rhythm does not just govern sleep. It controls hormones, digestion, immune response, metabolism, and body temperature. Night shift forces all of those to run out of sync with the environment they were designed to follow.
Research shows night shift workers face significantly higher rates of type two diabetes, heart disease, obesity, and depression compared to day workers.
The World Health Organization has classified overnight shift work as a probable carcinogen because of how circadian disruption affects cellular repair.
And most shift workers are also chronically sleep-deprived because daytime sleep is lighter, shorter, and more fragmented than nighttime sleep.
If you work nights, your sleep on days off matters more than most people realize.
Share this with a night shift worker who needs to hear it.
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