Why the Diaphragm Keeps Breathing in REM

Why is the diaphragm the only breathing muscle that keeps its cool while you’re dreaming?

During REM sleep, your brain is highly active, but your breathing muscles enter a

state of profound suppression. A specific inhibitory pathway—called a cholinergic-potassium

channel mechanism—effectively shuts down the muscles in your throat to keep you still. This active suppression

is why your breathing becomes erratic and irregular during your most vivid dreams.

But surprisingly, your diaphragm is the only major breathing muscle largely spared from this "lockdown,"

continuing to pump reliably while almost everything else is inhibited. Discover the unique

mechanics of the dreaming brain and why REM sleep changes everything. Listen to the full