Almost 10% of people in the Netherlands have a hearing impairment. Especially the elderly and people with intellectual disabilities. Both groups mainly suffer from perception or hearing impairment. The biggest problem for the hearing impaired is not that they cannot hear soft sounds properly, but that they have difficulty understanding others. What others say is often too soft and in addition, harsh environmental noises are amplified. Understanding a conversation when there are other sounds often fails. The hearing impaired are highly dependent on visual information, such as body language, but it can easily be misunderstood. A hearing impaired person is often (partly) dependent on others for his information. Hearing impairment can influence social and psychological functioning. Not all restrictions can be solved with hearing aids. Social functioning therefore requires a lot of energy. It is important for assistants to be extra alert to hearing impairment among the elderly and people with a mental disability. When talking to someone with a hearing disability, it is important to look at him, to articulate him clearly and visibly and to structure the conversation.