Your Body's Fire Alarm That Won't Shut Off

Drew, what if I told you there's a fire alarm inside every single one of your cells, and as you get older it just... starts going off constantly for no reason?

I would say that sounds exactly like my neighbor's car alarm, and also yes, that's basically what's happening in your body.

So what's actually triggering it?

DNA in the wrong place. Your DNA is supposed to stay locked inside the nucleus — think of it as the cell's filing room. When bits escape and float loose, a sensor called cGAS-STING flips out. cGAS is the detector that physically grabs stray DNA; STING is the dispatcher that calls in the immune army.

And with age, more DNA leaks out?

Constantly. Your mitochondria get a little ratty, your nucleus gets a little leaky, and suddenly cGAS is finding DNA everywhere and just losing its mind.

So this is what scientists call inflammaging — inflammation plus aging?

Exactly. Low-grade, slow-burning inflammation running for decades. No fever, no obvious symptoms. Just quietly wrecking your heart, your brain, your joints.

Okay so what can we actually do about it?

Exercise is the biggest lever with the best evidence. Consistent aerobic exercise reduces inflammatory signaling — it also improves mitochondrial health, so less DNA leaks in the first place. You're fixing the leak, not just mopping the floor.

What about food?

An anti-inflammatory dietary pattern — lots of plants, fatty fish, olive oil — is consistently associated with lower inflammatory markers. Nothing exotic. Salmon beats a pill most days.

Any supplements worth mentioning?

Evidence is thinner here, but quercetin and fisetin — both compounds found in plants — are getting serious research attention for calming this exact pathway. Early days, not ready to prescribe yourself a protocol.

What about sleep? Because I feel like you're about to say sleep.

I am absolutely about to say sleep. Poor sleep is one of the fastest ways to spike inflammatory markers. Your cells literally do repair work at night. Skimp on that and the DNA leaks get worse.

Any therapies — like sauna or cold?

Sauna has decent evidence for reducing inflammatory load over time. Cold exposure has some signal too, though smaller. Both are probably doing good things for mitochondria, which addresses the source.

Okay, one thing people can actually do tomorrow morning?

Thirty minutes of brisk walking. It genuinely moves the needle on mitochondrial health, which reduces the DNA leakage, which gives cGAS-STING fewer false alarms. Everything else builds on top of that.