<human>: Is it normal to have a squeaky voice?
<bot>: Yes, it is normal to have a squeaky voice. The human voice box is made up of three main parts that vibrate when air passes through them. These are the vocal folds, the larynx and the pharynx. When you speak, your vocal cords open and close quickly in order to produce sound waves. This causes the vocal folds to rub against each other, creating friction which produces the vibration necessary for speech. As you get older, the vocal folds become thicker and less flexible, making it harder to produce clear sounds. This can cause a person’s voice to become higher pitched and more squeaky as they age.