Welcome back, Alan ... and thank you so much for another well-balanced approach to a genetic study that, rightly or wrongly, many male members of a mature age undoubtedly feared may - or may not - impact on their relationships with younger ladies. Once again, we are grateful for your reassurances.

Research into the fields of Autistic Spectrum Disorder and Aspergers Syndrome have long been of specific interest to my daughter, Fiona ... who, as I believe you already know, practised as a Speech & Language Therapist based at Ellon Health Centre in Aberdeenshire for 15 years ... prior to relinquishing her career (albeit temporarily) in order to devote herself to full time motherhood.