The larynx contains the vocal cords, two tiny muscles. The larynx is located in the throat at the top of the trachea, or windpipe. That’s what is causing the change in his voice. In particular, the increase in this hormone causes changes in the larynx, or voice box. The reason much of this happens is, in part, rising levels of testosterone. Boys develop a greater aerobic capacity, and blood pressure rises slightly. There also are changes in the heart and blood vessels. As a result, body fat becomes a greater fraction of total body weight during puberty. Along with the growth of muscles and bones, there is an even greater growth in the amount of body fat. He will have more frequent erections, become capable of making sperm and thus become fertile.īoys undergo a growth spurt during puberty. Then, the penis begins to grow and sexual hair begins to appear. The first thing that generally happens to a boy during puberty is that his testicles begin to get larger and to make testosterone. A change in his voice is just one of several changes in this phase of life. Why does this happen?ĭEAR READER: Your son is going through puberty. DEAR DOCTOR K: My son is 14, and his voice has started to change.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |