Andrew Huberman· PhD
This is where the PM2.5 that's thought to be the stuff that penetrates your lungs and causes all kinds of problems.
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The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
This is where the PM2.5 that's thought to be the stuff that penetrates your lungs and causes all kinds of problems.
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Particulate matter consists of small suspended particles, the worst of which are particles 2.5 micrometers and smaller (PM2.5) , as these remain suspended in the atmosphere, and can reach deep into the lungs and cross into the bloodstream and through the blood brain barrier BBB.
So just like for for context on this like the the PM 2.5 is is a marker of of of a health danger. It's uh 2.5 micrometers and this particular thing is identified because it's small enough to bypass the nose and the throat and get into deeply into the lungs and even the bloodstream and maybe even to the brain. And it carries these toxins, these nitrogen, nitrogen oxides, sulfur dioxides, carbon monoxides that come from industrial pollution, you know, vehicle emissions, smoke and uh it causes all kinds of things like it can put you at risk of lung disease, cardiovascular damage, neural generation, you know.