Before puberty, the difference in pronunciation between male and female teenagers is not big, but after puberty, there will be obvious differences. Boys, in particular, tend to have a hoarse voice when speaking, which is commonly known as "broken throat". When you observe carefully, you will find that the boy's Adam's apple has become larger, but not very prominent. This stage is called the voice change stage. After a period of time, the boy's voice will change from a child's voice to a thick and deep voice, resembling an adult male's speaking voice. At this time, the Adam's apple will be prominent. The relationship between Adam's apple and voice change is extremely close.

Human body development changes greatly during adolescence, and the larynx also develops rapidly. The larynx is mainly composed of the thyroid cartilage above and the cricoid cartilage below. The thyroid cartilage is connected at the midline by the left and right square cartilages. Its shape is like two pages of book cover unfolded backward. The vocal cords are located inside the thyroid cartilage. After a boy enters puberty, his larynx grows rapidly, the angle formed by the two square cartilages on the left and right becomes smaller, and the upper part protrudes forward to form the Adam's apple. At this time, the front and back necks of the larynx also loosen rapidly, the length of the vocal cords almost doubles, and the width and thickness also increase. As the vocal cords develop, in terms of audio frequency, they will decrease by about one octave, so the child's voice becomes a thick and deep male voice. Boys generally begin to change their voices at the age of 13, and by the age of 15 they have completely entered the voice change stage. After the age of 19, boys all have their Adam's apple protruding and their voices become thicker.

Although there are no obvious changes in the appearance of girls' Adam's apple during adolescence, there are also obvious changes within the Adam's apple: that is, the vocal cords grow and narrow, so the frequency of pronunciation is high, and the tone becomes higher and thinner.

The length of the voice-changing period varies from person to person, ranging from 4 to 6 months to about a year. During the voice change period, the vocal cords undergo significant changes. The vocal cords are congested, swollen, and secreted more, making them easily damaged. Therefore, in order to protect their throats, teenagers during this period should not scream loudly or speak loudly for a long time. Try to avoid stimulation by bad external factors, do not smoke, do not eat irritating food, and balance work with rest, actively participate in sports activities, and prevent colds.

Teenagers generally enter the voice-changing period around the age of 14-16. This period is when their larynx and vocal cords are growing and developing. Its manifestations include: hoarseness, narrow vocal range, pronunciation fatigue, local congestion and edema, increased secretions, etc.

The voice changing period usually lasts from six months to one year. To maintain your voice during the voice change period, in addition to using your voice scientifically and rationally and not letting it get too tired, it is also important to pay attention to dietary adjustments.

First of all, attention should be paid to the intake of collagen and elastin

The vocal organs are mainly composed of the larynx, Adam's apple and thyroid cartilage. These organs are in turn composed of collagen and elastin. of. The vocal cords are also made of elastic protein membranes. Therefore, teenagers in the voice-changing stage should eat more foods rich in collagen and elastin, such as pig trotters, pig skin, tendons, fish, beans, seafood, etc.

Second, you should take in B vitamins and calcium.

Vitamin B2 and vitamin B6 can promote the development of skin; calcium can promote the development of thyroid cartilage. Foods rich in vitamins mainly include celery, tomatoes, eggs, beans, animal liver and fresh fruits. Foods rich in calcium mainly include fish, shrimp, milk, soy products, etc.

Third, staple and non-staple food should be soft and delicate foods

Do not eat fried peanuts, popcorn, crispy rice, nuts and fried foods that are hard and dry food to avoid mechanical damage to the throat.

Fourth, drink more water in moderation

It can reduce or clear local secretions and avoid secondary infection.

Fifth, eat less sour and bitter irritating foods

Such as garlic, pepper, ginger, leek, etc., because these foods will irritate the trachea, larynx and vocal cords. Don't drink too hot water or too many cold drinks. Too cold or too hot is not good for your vocal cords. Smoking and alcohol should be avoided to prevent aggravation of local aseptic inflammation.

Sixth, chew carefully and slowly when eating. Do not eat quickly to prevent the sand and fish bones in the food from stabbing the tissues of the throat.