I was wondering if anybody here have some more precise information about the link between schizophrenia in the family and the chances of developing a latent schizophrenia.

My lover has a grandmother who has a form of schizophrenia, and although she has been doing psychedelics for a while without any bad psychological consequence, she is now wondering if it is a safe tool for her to use.

Anybody has some data or statistic about that issue?