Which of the following is a common cause of voice disorders?

Excessive use of vocal cords is a well-documented cause of voice disorders. When an individual frequently overuses their voice—such as speaking loudly, shouting, or talking for extended periods without rest—this can lead to strain and injury of the vocal folds. This strain may result in conditions like hoarseness, vocal nodules, or laryngitis. These vocal strain issues are particularly evident among professionals who rely on their voice, such as teachers, singers, and public speakers, highlighting the importance of vocal hygiene and proper voice use.

While genetic factors, environmental allergens, and sleep deprivation can also impact voice quality and health, they are less common or direct causes compared to excessive vocal strain. For instance, genetic factors might predispose someone to certain voice disorders, but they are not as prevalent as the direct effects of vocal overuse. Environmental allergens might cause irritation or allergies that could affect the voice, but they typically contribute to a broader range of respiratory issues. Sleep deprivation can influence general health and cognitive function, potentially affecting voice quality, but it is not a primary cause of voice disorders in the same manner as the overuse of the vocal cords.