Gary Brecka

And a 2025 review published in Circulation Research found that this kind of circadian misalignment directly disrupts glucose metabolism, blood pressure regulation, and hormonal balance, completely independent of how many total hours you slept.

So now I wanna address the most common question I got after the first episode.

And I know a lot of you are living this.

You restrict sleep during the week and you try to make it up on the weekends.

Two extra hours on Saturday, maybe three on Sunday, you feel better and you think you've balanced out the books.

only you haven't.

A study published in the journal Sleep followed participants through six weeks of chronic weeknight sleep restriction, six hours per night on weekdays with full weekend recovery sleep allowed.

The results were sobering.

Even with weekend recovery, cognitive deficits persisted.

They didn't bounce back.

And when they tracked sleep depth, it kept building across the weeks despite these little recovery periods.

The irregular timing created by sleeping short on weekdays and trying to catch up on weekends is basically giving yourself jet lag every single week.

Your body doesn't get to reach a stable circadian rhythm because you keep shifting the schedule.

The research group that analyzed 73 million nights of wearable data specifically called out this catch-up sleep pattern as circadian disruptive, not restorative.

The second area this new research clarified, and this is one I feel really strongly about, is the physical environment while you're sleeping.

We've talked before about keeping your room cool and dark, but I want to go further than that because a recent study raised concerns about what's in most bedrooms that people are not even aware of.

The concern is electromagnetic fields.

A 2024 double-blind randomized placebo-controlled crossover study published in Frontiers in Public Health found that RF EMF exposure from devices like mobile phones and Wi-Fi routers during sleep measurably altered EEG architecture and disrupted subjective sleep quality.

This was a controlled trial, meaning they were able to isolate EMF as the variable.

These are simple, free interventions that research now backs up.