Autism Essay
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Autism
Introduction
Autism is a brain disorder that is associated with a range of developmental problems, mainly in communication and social interaction. The first signs of this disorder typically appear before age 3. Although treatment has improved greatly in the past few decades, autism cannot be cured. It persists throughout life.

Its estimated that three to six of every 1,000 children have autism. A recent increase in the number of autism cases in the United States may be the result of improved diagnosis and changes in diagnostic criteria.

The disorder occurs three to four times more often in boys than in girls. The severity of symptoms is variable. Some children with autism will grow up able to live independently, while others may always need supportive living and working environments.

The cause of autism isnt clear, and theres no cure. But intensive, early treatment can make a difference.
Signs and symptoms
In general, children with autism have problems in three crucial areas of development — social skills, language and behavior. The most severe autism is marked by a complete inability to communicate or interact with other people.

Because the symptoms of autism vary widely, two children with the same diagnosis may act quite differently and have strikingly different skills.
If your child has autism, he or she may develop normally for the first few months — or years — of life and then later become less responsive to other people, including you. You may recognize the following signs in the areas of social skills, language and behavior:

Social skills
Fails to respond to his or her name
Has poor eye contact
Appears not to hear you at times
Resists cuddling and holding
Appears unaware of others feelings
Seems to prefer playing alone — retreats into his or her “own world”
Language
Starts talking later than other children
Loses previously acquired ability to say words or sentences
Does not make eye contact when making requests
Speaks with an abnormal tone or rhythm — may use a singsong voice or robot-like speech
Cant start a conversation or keep one going
May repeat words or phrases verbatim, but doesnt understand how to use them
Behavior
Performs repetitive movements, such as rocking, spinning or hand-flapping
Develops specific routines or rituals
Becomes disturbed at the slightest change in routines or rituals
Moves constantly
May be fascinated by parts of an object, such as the spinning wheels of a toy car
May be unusually sensitive to light, sound and touch
Young children with autism also have a hard time sharing experiences with others. When someone reads to them, for example, theyre unlikely to point at pictures in the book. This early-developing social skill is crucial to later language and social development.

As they mature, some children with autism become more engaged with others and show less marked disturbances in behavior. Some, usually those with the least severe impairments, eventually may lead normal or near-normal lives. Others, however, continue to have severe impairments in language or social skills, and the adolescent years can mean a worsening of behavior problems.

The majority of children with autism are slow to acquire new knowledge or skills. However, some children with autism have normal to high intelligence. These children learn quickly yet have trouble communicating, applying what they know in everyday life and adjusting in social situations. An extremely small number of children with autism are “autistic savants” and have exceptional skills in a specific area, such as art or math.

Causes
Autism has no single, identifiable cause. The disorder seems to be related to abnormalities in several regions of the brain. Researchers have identified a number of gene defects associated with autism.

Families with one autistic child have a one in 20 chance of having a second child with the disorder. In some cases, relatives of autistic children show mild impairments in social and communication skills or engage in repetitive behaviors.

Children with symptoms of autism have a higher than normal risk of also having:
Fragile X syndrome, which causes mental retardation
Tuberous sclerosis, in which tumors grow in the brain
Tourettes syndrome
Epilepsy
Some people believe autism is caused by vaccines — particularly the measles-mumps-rubella vaccine (MMR), as well as vaccines containing thimerosal, a preservative that contains a very small amount of mercury. But extensive studies have

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Number Of Autism Cases And Recent Increase. (July 6, 2021). Retrieved from https://www.freeessays.education/number-of-autism-cases-and-recent-increase-essay/