Abstract
As humans grow from children into adults, they pass through a stage called adolescence. Adolescence is a time of major social, environmental, and biological change in a person’s life. The start of puberty, which often happens around the teenage years, is an important period of human physical and emotional development. In addition to the more obvious bodily changes that happen during this time, an adolescent’s brain also goes through changes that may not be as visible. These changes are directed by chemicals called hormones. Hormones help our bodies become taller, change shape, and even grow hair. Although hormones act on different parts of the body (like bones, muscles, or skin), several crucial hormones for puberty are actually made in the brain. Scientists are learning more about the ways hormones affect how the brain grows and changes, and in turn, the way that changes how you act and feel!
Highlights
As humans grow from children into adults, they pass through a stage called adolescence
Like melatonin, help set our biological clocks and tell us when to sleep or wake up. Many, such as thyroxin and insulin, help control metabolism. Others still, such as estrogen, testosterone, and growth hormone, are critical for changes that happen to our bodies as we develop during adolescence, like the growth of reproductive organs
The many organ systems in the body are like the instruments that carry out the conductor’s commands and bring the entire process to life. During these intricate periods of transition, hormones serve as messengers that travel throughout the body and give orders to grow, change shape and size, or make more of something the body needs (Figure ) [ ]
Summary
There are around di erent kinds of hormones in the human body. Some, like adrenaline and cortisol, help us react to stress and initiate the “fight-or-flight” response. Like melatonin, help set our biological clocks and tell us when to sleep or wake up. Many, such as thyroxin and insulin, help control metabolism. Others still, such as estrogen, testosterone, and growth hormone, are critical for changes that happen to our bodies as we develop during adolescence, like the growth of reproductive organs. – ), adolescence (ages – ), and young adulthood (ages – ). As you can imagine—and maybe have already experienced yourself—a lot changes from infancy to young adulthood! Understanding these changes and how they happen can help us better understand ourselves and those around us as we mature As you can imagine—and maybe have already experienced yourself—a lot changes from infancy to young adulthood! Understanding these changes and how they happen can help us better understand ourselves and those around us as we mature
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