'A lot fell into place': the adults who discovered they were autistic - after their child was diagnosed

The recorded incidence of autism has increased 787% in 20 years. For many parents, getting help for an autistic child alerted them to their own traits When John Purnell's 10-year-old son was diagnosed as autistic, he knew exactly how to respond. "I've always been fascinated by research, by detail, by finding out everything there is to find out about something," he says. "So I did a really deep dive." As he pored over academic papers and delved into medical science - including how many autistic p...