Most people with hearing loss have adapted to being in a quiet and silent environment, and when listening to others, they only notice the loud speech of the interlocutor, so the existence of noise discrimination function is meaningless because they cannot hear noisy noise at all. After wearing a hearing aid, it is unlikely that the higher filtering function of the cerebral cortex will be restored in a short period of time. Therefore, when a hearing aid is first worn, the first impression of the patient is often: “Why is it so noisy? I can hear everything, but I can’t tell what you’re all saying.” This is because hearing aids amplify all the surrounding sounds, not only the volume of the interlocutor’s speech, but also the ambient noise, and when the brain cannot effectively distinguish what is noise and what sounds should be filtered out, the wearer often gets irritated and loses confidence in the hearing aid, thinking that he has bought a “noise machine”. “This phenomenon is a result of the brain’s failure to filter out noise in a timely manner. In fact, this phenomenon is a failure of the brain to adjust to the state in time. When the wearer gradually adapts to the great changes brought by the hearing aid, he or she will gradually like the hearing aid. This is also exactly the process of the brain gradually restoring the noise filtering function. Since it takes time for the cerebral cortex to adjust to this new auditory change: 1. Don’t expect great results in a short time with your hearing aid, otherwise you will be disappointed. 2. In the beginning, please remember not to jump to conclusions about the effectiveness of your hearing aids. 3.If you have friends who have used hearing aids and feel very dissatisfied with them, don’t be influenced by them because it doesn’t mean you will be dissatisfied too. 4.Mastering good ways and means to adapt to hearing aids as soon as possible can make the wearer feel the pleasure brought to them by the surrounding sound earlier.