Andrew Huberman· PhD
the PM 2.5 data is pretty good I I think once you so particulates that are less than 2.5 microns are are getting straight into the body
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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.
the PM 2.5 data is pretty good I I think once you so particulates that are less than 2.5 microns are are getting straight into the body
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PM2.5 refers to particulate matter sized 2.5µm and smaller, this is among the most damaging type of pollutants due to its penetration deep into the alveoli of the lungs, and crossing into the blood stream.
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. This particulate matter can reach deep into the lungs, cross into the bloodstream, and through the blood-brain barrier BBB.
it's small enough that it can bypass you know nasal hairs get into your bloodstream and get into organs so it's uniquely pernicious to cause disease and negative health effects