Inflammation of the tissue around the cords applies pressure to the tissues and this also limits their movement which causes one's voice to sound deeper and huskier. Infections - bacterial, fungal, and viral infections affecting the soft tissue of the larynx can affect the vocal cords.Causes of dry mucous membranes may include not drinking enough water, drinking excessive amounts of caffeine-containing beverages, smoking, and using medications such as antidepressants, antihistamines, and certain blood pressure agents. Dried-out mucous membranes - when the tissue around the vocal cords is dry, this limits the ability for the cords to function properly.Physical and emotional stressors - when one is under a particular amount of stress, the muscles around the vocal cords become tense and this limits the function of these tissues.Normal loss of muscle mass - after the age of 30, the body starts to lose muscle mass and the larynx and vocal cords can be affected resulting in a higher-pitched voice.Causes of Voice ChangesĪfter puberty there are certain stages and conditions that can cause one's voice to become higher or lower in pitch and they include the following: The growth of the vocal cords and larynx are milder though so their voice changes are mild compared to male. When girls go through puberty, their vocal cords also lengthen. The end result is that once the larynx and vocal cords have enlarged and lengthened completely, the person's voice becomes deeper and more resonant. These changes can occur rapidly, over a few weeks, or even months. As the vocal cords and larynx are enlarging, they cause the voice to sound as if it is cracking. When the cords enlarge, the individual will then produce a lower-pitched voice. The short vocal cords of children produce voices that are high in pitch. Testosterone causes a young boy's larynx to get bigger and the vocal cords to lengthen and thicken. One of these physical changes involves the larynx in the throat, also referred to as the voice box. The main reason for changes in a male's voice is due to the physical changes that occur in the body when the testicles start to produce the hormone testosterone.
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