disorder

Reported problems include spina bifida, cleft palate, and a range of intellectual, communication, behavior and memory disorders.

Many neurological and psychiatric conditions, including schizophrenia, obsessive-compulsive disorder, and some forms of brain injury, can make it difficult for people to apply existing skills in new situations.

As human cells grow older or are harmed by degenerative disorders such as Alzheimer's disease, or by exposure to harmful agents like chemotherapy drugs, their ability to generate energy steadily drops.

This combination may help explain why metabolic disorders increase the likelihood of cognitive decline later in life.

Parkinson's is a progressive neurological disorder that affects an estimated 1 million people in the United States.