What are the causes of sudden onset deafness? Some can be identified quickly, while others have a long history of difficulty identifying the cause. Researchers have found a relationship between lifestyle and dietary habits and sudden deafness. The researchers analyzed the risk factors for sudden deafness by comparing the living and eating habits of 164 patients with sudden deafness who came to the hospital and 24,941 healthy people of the same age, sex and place of residence as those with sudden deafness. The results showed that people who did not get enough sleep and often skipped breakfast were prone to sudden deafness. The risk of developing sudden deafness was 4.3 times higher in those who slept less than 7 hours a day compared with those who slept 7 to 8 hours a day, and 2.73 times higher in those who often skipped breakfast compared with those who ate breakfast. In addition, those who did not drink tea daily were 1.76 times more likely than those who drank tea daily. The researchers noted that although it is not clear whether sudden deafness is related to tea drinking, work stress, fast-paced life and poor dietary habits are indeed important factors leading to sudden deafness. Sudden deafness is a sudden onset of sensorineural deafness. It is one of the most common diseases in otology and is accompanied by tinnitus and, in some cases, vertigo. Ear, nose and throat specialists remind that the prevention of sudden deafness should start from daily life, avoid exposing yourself to noisy environment, go to less noisy places such as cabaret; pay attention to rest, keep enough sleep, do not listen to music with earplugs before going to bed; try to maintain a relaxed and good state of mind, find ways to help relieve stress and tension, and develop good habits.