Why do changes occur in human body at puberty??

The changes in your body during puberty are caused by hormones which are chemicals produced in your body. These hormones are like chemical messages that cause the testicles or the ovaries to release other hormones. All these hormones work together to start the changes in puberty

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The following changes occur : *in male : the male sex organs begins to enlarge. Testis starts producing sperm. Also releases testosterone. *in female : ovary releases egg. Breast begins to develop. Menstrual cycle takes place. *Common : pimples, lighter hair on arms and legs, hair in underarm, between the thigh ( pubic hair).
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