The Sticky Traps Your Immune Cells Set That Age You Faster
Learn how your immune cells' last-ditch weapon fights infection but quietly fuels aging — and what you can actually do about it.
Rachel & Drew · 2:34
Transkript
Okay, so apparently our immune cells can explode on purpose and cast sticky webs made of their own DNA. Drew, why is nobody talking about this?
Right? It sounds like a bad superhero origin story. These cells are called neutrophils — your most common white blood cell — and they are dramatic.
How dramatic are we talking?
When they detect a serious infection, they unravel their own DNA and shoot it outward like a net to physically trap bacteria. It's called a NET — Neutrophil Extracellular Trap. Heroic self-destruction.
That's incredible. So what's the problem?
The problem is cleanup. Young, healthy bodies dissolve these traps quickly using an enzyme called DNase. Think of it as the janitorial crew that mops up the crime scene.
And with age the janitors call in sick?
Exactly. Partially dissolved NETs accumulate and just sit there, triggering chronic inflammation. That low-grade, constant fire is now linked to heart disease, diabetes, even cognitive decline.
So what can someone actually do on Monday morning?
First — move. Regular moderate exercise reduces NET formation. Not marathon training, just consistent movement. Thirty minutes most days has real evidence behind it.
What about food?
Omega-3 fatty acids — fish oil or fatty fish a few times a week — genuinely seem to dampen excessive NET activity. The research here is pretty solid.
Any supplements beyond that?
Quercetin — found in onions and apples, also available as a supplement — shows early promise at reducing NET-related inflammation. Evidence is thinner there, so honest caveat: promising but not settled.
Sleep? Please tell me sleep matters here.
Sleep is huge. Poor sleep spikes neutrophil activity, which means more traps, more cleanup failures. It's maybe the single most underrated lever here.
Okay one takeaway for the person driving right now?
Protect your sleep like it's a job. Everything else — the fish, the movement, the supplements — helps at the margins. Sleep is where your body actually does the cleanup.