Impaired mental ability can result from genetic problems, birth injuries, early brain infections, and dietary deficiencies, as well as drug, alcohol, or chemical exposure. In the majority of cases, the cause is unknown. What is it like to be parents of children having special needs? How can such parents be encouraged?
მარკუსს ხშირად ემთხვევა ხიფათი, რის გამოც რეგულარულად სჭირდება პირველი დახმარების აღმოჩენა.