"Vocal fold hydration is important for healthy function of the vocal mechanism. Vocal fold surface fluid protects the mucosa and facilitates efficient vocal fold oscillation... Singers are believed to be particularly at risk for voice problems related to dehydration due to environmental and voice use factors...Therefore, it is important for optimal vocal performance to take measures to ensure that the vocal mechanism is properly hydrated." (Fujiki 2014)

"Professional voice users such as singers require optimal vocal health and may be at risk for voice problems due to dehydration. For example, frequent airplane travel, hotel stays, and changing performance schedules and venues may place singers at increased risk for dehydration-related voice problems... Nebulized isotonic saline again showed potential as a laryngeal lubricant, possibly aiding surface hydration. This research has important implications because singers require their vocal mechanisms to perform at a higher level and are therefore at high risk for vocal problems if the vocal apparatus is not functioning optimally." (Fujiki 2014)


"These findings suggest that nebulized Isotonic Saline provides immediate relief from the perceived negative effects associated with brief exposure to dry air in the singing voice...In essence, Isotonic Saline might serve simply as a laryngeal lubricant, decreasing the viscosity of the surface liquid on the vocal folds and thereby reducing vocal effort and increasing vocal fold vibratory efficiency." (Tanner 2010)


"After nebulization with saline solution, women without laryngeal alterations showed a decrease in the lateralization of the vocal folds during phonation, suggesting a better phonatory efficiency." (Plec 2022)