In short: Excessive exercise, usually to lose weight (see also Bigorexia).

General signs:

•    Obsessively exercising for hours a day most days

•    Selective on what they eat – may eat very little and typically ‘healthy’ foods like salads

•    Increasingly bothered by weight and size

•    Setting ambitious fitness targets (e.g. running 5 miles every day)

•    Cancelling social events with family and friends to exercise

•    Refusing to take time off from gym sessions despite illness or injury

•    Uncharacteristic mood swings – can be a symptom of high energy drinks or supplements to increase energy to exercise

•    May have previously had an eating disorder or recovering