Adrian Dunbar's daughter lifts lid on sex addiction, substance abuse and ADHD

Madeleine says her new single Dopamine - out next month - draws directly from her experience with attention deficit hyperactivity disorder, a neurological condition she describes as 'exhausting and euphoric in equal measure', and the harmful addictions that coincided. Dopamine is a feel-good hormone that spikes when we seek pleasure. Dips linked to ADHD or addiction can leave people chasing constant highs - so fuelling the cycle of addiction.