The article I came across talks about intellectual disabilities. This occurs when a person has diffiucalty with mental abilities, because of genetic abnormalities. These diseases can affect their intellectual functioning- such as learning, judgment, and problem-solving abilities, practical functioning- the ability to function independently, and social functioning- the ability to function normally in society. These conditions develop often due to injury, disease, or brain conditions, usually before the age of 18. Most causes of intellectual disability include genetic conditions such as down syndrome, phenylketonuria, or fragile X syndrome. Symptoms include taking longer to learn and develop intellectually than most. I think knowing how certain diseases may affect the brain is interesting to read about. I also believe it's helpful for parents to know what symptoms and signs to look out for.