Introduction In human development, voice changes with age. The most striking changes are experienced during childhood and adolescence owing to structural alterations on the larynx (the voice box) and the vocal cord (fold) tissues. Moreover, hormonal shifts that take place during each stage of development result in corresponding alterations in the structure of the voice box and vocal cord tissues. The transformations that occur to the voice due to the effects of aging manifest in alterations in its pitch, coordination, projection, volume, flexibility, tone, and endurance. Voice changes are different among men and women and are more pronounced in males as they grow from childhood to adolescence. The changes are distinct among women during menopause as shifts in the levels of hormones in the body take place. Hormones and changes in the structure of the vocal folds and larynx are the major reasons why humans experience changes in the pitch, volume, tone, and coordination of their voice as they go through the various stages of development. Structural Changes The Larynx The voice box is the section of the respiratory tract responsible for the production of sound. It contains the vocal cords and is located between the trachea and the pharynx. The voice box is approximately 2-inch long and it undergoes significant changes that alter the voice as an individual age. The pitch of the sound produced by the voice box depends on the degree of contractions experienced in the vocal cord muscles (Handa, 2017). Children usually have small voice boxes and thin vocal cords, hence their higher voices compared to those of adults. Their voices deepen as they go through puberty due to the effect of hormones on their developing bodies. As mentioned earlier, boys’ voices get deeper and are noticeable. The voice box enlarges and the vocal cords grow longer and thicker. Other developmental features such as larger cavities in the sinuses and bigger throat cavities create more room for the voice to reverberate (Handa, 2017). In many cases, a boy’s voice breaks or cracks, and this continues for a few months as the larynx continues to grow. The voice stabilizes once the larynx stops growing and the vocal cords stop enlarging. Older people experience challenges with phonation. A study conducted by Vaca, Mora, & Cobeta (2015) found out that older people reported decreased phonation times when compared to younger people. Age-related changes that affect the larynx cause shorter phonation times due to an incompetent glottal closure (Vaca et al., 2015). The Vocal Folds The vocal folds alter the voice by regulating the amount of air that passes out of the lungs. As an individual grows older, the control of airflow over the vocal folds becomes less efficient and results in a condition known as the presbylarynx. Presbylarynx is characterized by the atrophy of the larynx’s soft tissues, which results in a weak voice that has a limited range and stamina (Handa, 2017). In that regard, the voice of an older individual loses its tone and elasticity. Aging affects the volume and projection of the voice because of a weakened respiratory system. A research study conducted by Lortie, Thibeault, Guitton, and Tremblay (2015) revealed that despite the changes that affect voice production due to aging, the ability to alt