We present the case of Masha & Dasha: Conjoined twins who were relentlessly experimented on by Russian Scientists. Though they shared a body, their psychological makeup was extraordinarily different. It's widely claimed that Dasha was empathic, while Masha was a psychopath. Was it genetics or environment that determined this?  UPC is a Forensic, Psychology, and True Crime Podcast that takes on: True Crime: serial killers, murders, stalkers, cults, forensic analysis Psychology: mental illness, social phenomenon, mob mentality, psychoanalysis, etc.  Culture: Sexuality, Satanic Panic, love, Tv analysis, movie analysis.  We are an independent psychology podcast. Help us keep UPC free of ads and on the air. Please consider supporting the show and get access to our "Stalkers Only" archive, and help be a part of the creative process.  Support the show--> patreon.com/upcpodcast Like us on @upcpodcast on Facebook/Twitter/Instagram/Youtube.