Deafness and hard-of-hearing
Hearing loss may result from genetic causes, complications at birth, certain infectious diseases, chronic ear infections, the use of particular drugs, exposure to excessive noise and ageing. People who are deaf or hard-of-hearing can benefit from hearing aids, cochlear implants and other assistive devices; captioning and sign language; and other forms of educational and social support.
Developmental Language Disorder
A developmental language disorder (DLD) is a neurocognitive developmental disorder. Children with DLD process language less proficiently. They experience problems with speaking, understanding language, and/or learning sounds, words, and sentences. Additionally, they are often less capable controlling themselves and understanding their own and other people's thoughts and feelings.