There’s a strange morning habit doctors are starting to pay much closer attention to.

It seems harmless. Common, even.

Something millions of older Americans do without thinking twice…

But new research suggests it may be one of the clearest early warning signs that something deeper is changing inside your body.

And the unsettling part? Most people brush it off as “just getting older.”

But scientists now say that may be a dangerous mistake.

Because in a long-term study tracking seniors for nearly two decades…

This one seemingly innocent habit was linked to a whopping 30% higher risk of death.

And the earlier in the day it happened…the worse the risk became.

The habit? Daytime napping. But at a specific time of day.

In a major new study published in JAMA Network Open, researchers tracked 1,338 seniors for up to 19 years using wearable sleep monitors—giving them far more accurate data than simple self-reporting.

And what they found was hard to ignore:

Each additional hour of daytime sleep was linked to a 13% higher risk of death.

Each extra nap increased that risk by 7%.

And seniors who napped earlier in the day, during the morning, had roughly a 30% higher mortality risk than those who napped later.

Now, before you panic: Researchers don’t believe the nap itself is the problem.

It’s what the nap may be revealing. Because your body is designed to be alert in the morning.

That’s when cortisol rises. Body temperature climbs. Energy systems switch on.

It’s all controlled by your circadian rhythm—your built-in biological clock.

But when that clock starts breaking down, you may feel sleepy at the wrong time.

And that can be one of the earliest signs of hidden trouble:

Poor overnight sleep. Sleep apnea. Blood sugar instability. Heart strain. Inflammation. Even early cognitive decline.

And here’s what most doctors won’t tell you:

They don’t really “treat” circadian rhythm breakdown. Because there’s no drug for it.

So instead, they treat the downstream damage:

  • Elevated blood pressure
  • Diabetes
  • Fatigue
  • Memory Loss
  • Inflammation
  • And so on

But by then?

The deeper disruption may have been building for years.

And one of the earliest clues can be simple daytime sleepiness at the wrong time.

The good news? Your circadian rhythm can often be reset.

Start here:

  • Get sunlight within an hour of waking
  • Move your body early in the day
  • Eat meals on a consistent schedule
  • Avoid caffeine after lunch
  • Keep a regular bedtime—even on weekends

And if you’ve suddenly started needing more naps, or falling asleep before noon, don’t just assume it’s age.

Sometimes your body whispers before it screams.

And this may be one of those whispers.

To living in sync,

Ray Thatcher
Research Director, Health Sciences Institute

Sources:

Gao, C., Cai, R., Zheng, X., et al. (2026). Objectively measured daytime napping patterns and all-cause mortality in older adults. JAMA Network Open, 9(4), e267938. https://doi.org/10.1001/jamanetworkopen.2026.7938


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