Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Rett syndrome is a brain disorder, tightly related to autism spectrum disorders, occurring almost exclusively in girls. With an incidence estimated at 1 in 10000 females, the disease is believed to be caused by a faulty gene – a mutation of MECP2, responsible of proper function of brain cells, leading to severe problems with motor skills, communication, language, intellectual disability and others. Recently, scientists have carried out a number of experiments on mice affected by Rett syndrome, by transferring them bone marrow from healthy mice. According to results, the treated mice breathed easier, walked better and gained more weight. To find out more about Rett syndrome, its causes and potential treatments – read this book.