Gonna try to put this as uncontroversially as possible, lol. In all the things I've read about CORT's/PLM's, one of the main things I've seen come up as supporting evidence is the presence of birthmarks or defects that correspond to injuries sustained in the previous life, especially mortal wounds. This seems slightly more common in Eastern than Western cases, but don't quote me on that, I'm really not sure. Regardless, however, it does seem to be legitimately frequent, often including developmental defects that seem impossible or "moles where you never find moles", to paraphrase Stevenson. I've read the case data and the correlation is very hard to dispute, yet I cannot seem to wrap my mind around how this could work in the first place. Note that while I've read almost all of Stevenson's books, I haven't gotten to Reincarnation and Biology, because my library didn't have it last I checked, so if Ian gives a really good answer there, please quote it for me. I think that if we had evidence indicating that psychological factors have an impact on fetal development, then this would be very easy to account for, as the PLM's are likely present very early in development. However, we have no such evidence, and all indications seem to be that the only factors are genetic and environmental (e.g. maternal drug use). So how can having PLM's possibly result in developmental oddities aligning with past-life injuries? Where do reincarnation and biology truly intersect? Please point me toward any data that provides an opening for this to be scientifically possible.