Heather+K

Occurs when there is an extra copy of chromosome 21. the extra chromosome causes problems with the way the body and brain develop. happens in every 1 out of 700 births.
 * Description:**


 * Symptoms:**
 * Decreased muscle tone at birth
 * Excess skin at the nape of the neck
 * Flattened nose
 * Separated joints between the bones of the skull
 * Single crease in the palm of the hand
 * Small ears
 * Small mouth
 * Upward slanting eyes
 * Wide, short hands with short fingers
 * White spots on the colored part of the eye

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 * Side Effects:**
 * Airway blockage during sleep
 * eye problems
 * ear infections
 * loss of hearing
 * Heart problems
 * Weakness of the back bones at the top of the neck
 * A slow physical development.
 * Most children with Down syndrome never reach their average adult height.
 * Delayed mental and social development.
 * Impulsive behavior
 * Poor judgment
 * Short attention span
 * Slow learning
 * Teeth that appear later than normal and in a location that may cause problems with chewing

There is no specific treatment for Down syndrome, Getting plenty of activity and avoiding high-calorie foods are important, Behavioral training can help people with Down syndrome and their families deal with the frustration, anger, and compulsive behavior that often occur. Speech therapy may help improve language skills. Physical therapy may teach movement skills. Occupational therapy may help with feeding and performing tasks. Mental health care can help both parents and the child manage mood or behavior problems. Special educators are also often needed.
 * Treatments:**


 * Prevention:**
 * A woman's risk of having a child with this is more common at the age 35 or older.
 * Couples who already have a baby with Down syndrome have an increased risk of having another baby with the condition.




 * Work Cited:**

Board, A.D.A.M. Editorial. "Down Syndrome." //Down Syndrome//. U.S. National Library of Medicine, 18 Nov. 0000. Web. 08 Feb. 2013. http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001992/