Does anyone know if there is anybody doing anything to study possible genetics in the cause of AF? I'm interested in the possibility of a familial link but no one that I've talked to seems interested. My mum and aunt had AF, I think my grandad also had it. I have it (aggravated by congenital heart disease which causes an 'excuse' not to investigate causes) and my 25 year old son has now started showing symptoms of it too. This is far too much is a coincidence but no ons is interested. Any thoughts?