The function of the glottis is to make several voicing sounds between the vocal folds when they vibrate. Voiceless consonants include the English h, f, s, p, t and k sounds. The glottis functions... The function of the glottis is to make several voicing sounds between the vocal folds when they vibrate. Voiceless consonants include the English h, f, s, p, t and k sounds.
Misophonia sufferers find these sounds more than just mildly annoying. Beginning in late childhood or early adolescence, the condition causes extreme anger, anxiety and terror when a trigger sound, such as chewing gum, is heard.
Gum chewers had to chew on at least two sticks of sugar-free gum for 20 minutes each day, as well as keep a chewing diary, recording how often and how long they had gum. Results showed that the more gum the students chewed, the lower the levels of stress they reported.