The statistics do not change according to race, creed, social or ethnic background. People with Autism live normal life spans and symptoms may alter over time, therefore they must be evaluated and reevaluated throughout their lives. Immature rhythms of speech, limited understanding of ideas, and use of words without attaching the usual meaning to them. Any one or a combination of abnormal responses to sensations, including sight, hearing, touch, pain, balance, smell, taste, and the way a child holds his body, may be affected. Abnormal ways of relating to people and an unusual attachment to objects and events.
Autistic children can be either lethargic or hyperactive.
Severe autism may cause extreme forms of self-injurious, repetitive, highly unusual, and aggressive behavior. The behavior may persist and be very difficult to change, posing a tremendous challenge to those who must manage, treat, and teach autistic people. People with autism live normal life spans and, over time, certain symptoms may change or even disappear. Each symptom of autism can range from mild to severe. There appear to be several possible causes, either alone or in combination with others.