One rough night lowers your pain threshold and dials down the brain's built-in pain-control network.
Bad sleep doesn't just make you grumpy — it literally increases your pain levels.
In a study by UC Berkeley, a single all-nighter lowered participants' pain threshold and dulled the brain's own pain-management network. Or, as a high-school jock might put it: less sleep makes you soft.
But you don't need a full all-nighter to feel it. Controlled experiments show that partial sleep loss and sleep fragmentation make people more sensitive to heat and cold and weaken the body's built-in pain suppression.
That ripples into physical performance, mental focus, and every other area where pain becomes a factor — which is a lot, because let's be honest, life is painful.
What's the answer?
The fix is often simpler than we think: a better night's sleep.
