Sleep

Functional medicine treats the microbiome-sleep link as a one-way street. The research says it’s a loop — and that changes what actually works.

You don’t just have one body clock — your gut bacteria keep their own time, and when the two drift apart, sleep and energy pay for it.

That plastic guard protecting your teeth might be cultivating the exact bacteria your mouth doesn’t need.

The 3am wake-up isn’t random — it’s a cortisol-inflammation feedback loop that disrupts your sleep architecture.

The 3am wake-up isn’t just a cortisol problem — it’s inflammation hijacking your cortisol curve, and the fix starts with what’s driving the inflammation.

Inflammation doesn’t just cause pain — it hijacks your cortisol rhythm and wakes you up at 3am.

Your gut microbiome and sleep quality are locked in a bidirectional feedback loop — and most people are on the wrong side of it.

The trillions of bacteria in your gut are quietly running your sleep-wake cycle through serotonin, melatonin, and the vagus nerve — and most women over 35 have no idea.

Your sleep routine might be the thing keeping you awake. The harder you try, the worse it gets — and cortisol is why.

Your sleep tracker might be the reason you can’t sleep. Here’s what orthosomnia is and how to break the cycle.

The bacteria in your gut don’t just digest food — they regulate your sleep, energy levels, and potentially how long you live. Here’s the mechanism.

Not all sleep supplements are created equal. Here’s the evidence-based ranking — from proven to placebo.