There are definitely some social/environmental factors but there's enough anecdotal smoke around a genetic predisposition in some populations that the search fo

There are definitely some social/environmental factors but there's enough anecdotal smoke around a genetic predisposition in some populations that the search for fire and causation is underway. https://pubmed.ncbi.nlm.nih.gov/9603607/ https://pubmed.ncbi.nlm.nih.gov/9603607/ https://pubmed.ncbi.nlm.nih.gov/30852706/ https://pubmed.ncbi.nlm.nih.gov/30852706/