A charity which supports people with ME is calling for a better understanding of the condition. The Sussex ME Society says many of the problems experienced by people with the illness are not immediately obvious. Symptoms can have an impact on a person’s ability to function, plan and complete tasks at work, because their concentration and memory can be affected. Patients may be able to sustain normal mental activity for a while but not for prolonged periods where consistent performance is needed. Society chairman Colin Barton said, “Many affected by ME do not look ill, and apart from appearing tired or weak, others would not realise that at times perfectly intelligent people find it impossible to concentrate or respond appropriately to situations.” ME affects more than 6,000 adults and children across Sussex, with some virtually housebound and in need of care. The Department of Health and the World Health Organisation classify ME as a neurological disorder.