There may be lack of motivation or the ability to begin an activity; the person tires easily once the activity has begun; and. the person has mental fatigue or difficulty with concentration and memory to start or complete an activity.
plural ID's or IDs : a document (such as a card) bearing identifying information about and often a photograph of the individual whose name appears on it â called also ID card, identification card, identity card
Adolescent idiopathic scoliosis (AIS) is defined as a lateral deviation of the spine, associated to rotation of the vertebrae in an otherwise healthy subject, without any known cause for the deformity. These subjects have no neurological, muscular disturbance or any other diseases [1].