When a child is diagnosed with attention-deficit/hyperactivity disorder (ADHD), many parents begin to look at their own emotions and behaviour with new eyes. Might they also have ADHD, as yet unrecognized? After all, it can run in families. “For a lot of adults, an ADHD diagnosis for their child is the first impetus to be tested themselves,” says Dr Matthias Rudolph, a specialist in psychosomatic medicine and psychotherapy. And for good reason, because ADHD is a genetically determined, neurobiological metabolic disorder in which the brain is hypersensitive to sensory stimulation. There’s an im…