Andrew Huberman· PhD
Exactly. - Something like 80 to 90% of adults in the United States carry CMV. - Yes. - What does that mean? That, at one point, they had the CMV virus, and they felt it as a cold or a flu, but it was CMV? - Yes. - Mm-hmm. - Indeed. And some of these viruses, they stay dormant and live with us forever. And then when the immune system gets weakened, then they can wreak havoc.