Noise‐induced hearing loss due to intense and long‐term noise exposure is no longer disputed since the etiology is well defined. However, the influence of noise on the vegetative functions is not so clear. In addition to existing investigations on vegetative functional disturbances, the role of noise as a risk factor has to be determined and its effects have to be quantified. The significance of noise‐induced sleep disturbances in relation to health and well‐being, is also controversial. The hypothesized causal connection between acoustical stimulation and the occurrence of disorders, includes primary‐effects (e.g. awakenings) and after‐effects (e.g. changes in mood or performance). To date, it has not been feasible to determine late after‐effects, such as health disorders. The most often reported sociopsychological effect of noise is general annoyance, whereby annoyance is defined as disturbance of communication, rest, recreation or concentration. Some results indicate a higher sensitivity of critical groups (e.g. old people, the sick, children, pregnant women).