As it reflects every emotion, the human voice also reflects the stress that someone has been experiencing and its negative effects can leave a big mark on the voice. Whether it is acute or chronic stress, under its presence there is a change in the voice that can even lead to voice disorders. Psychogenic dysphonia, paradoxical vocal cords movement of the, muscle tension dysphonia, vocal nodules and spastic dysphonia are voice disorders that often have stress in their etiology. With the development of technology, acoustic analysis enables the objectification of the voice, ie the observation of parameters that change in stress, such as the fundamental frequency whose increase is recorded in a person under stress. Because stress is a response to external stimuli, it means that it can be acted upon to some extent. The diaphragmatic breathing technique is one of the most recognized and effective techniques by which an individual can reduce stress levels in an instant. In addition to the relaxation effect, this technique has a positive effect on the quality of the voice itself since proper breathing is the basis of a good voice. As part of the prevention of voice disorders, it is important to raise awareness both the public and experts about the effects of stress on the voice and its multidimensionality which can affect the outcomes of voice rehabilitation. The aim of this thesis is to review previous studies to answer questions such as the role of stress itself in the etiology of voice disorders, how it affects the voice itself, the underpinnings of which disorders we most often find, what are the techniques to reduce stress symptoms in the voice.