Joe says Rick Perry's brain scans showed age-related atrophy before ibogaine and none six months later.

The finding

What the evidence shows

Rogan's account matches what Perry himself says. A neuroscientist told Perry he had mild atrophy, and a neurosurgeon later looked at his before and after scans and said the atrophy was gone. But this is one person's report of his own scans. No scans or peer-reviewed data were published, and Perry says the follow-up scans were taken one week and six months after treatment, not the four to six weeks Rogan mentioned. Presenting it as settled proof that ibogaine reverses brain atrophy goes beyond the evidence. Published, independently read before and after scans showing the atrophy resolved would flip this verdict.