Development of the human body used to approximately judge a child's age based on physical development. Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction. It is initiated by hormonal signals from the brain to the gonads: the ovaries in a girl, the testes in a boy. In response to the signals, the gonads produce hormones that stimulate libido and the growth, function, and transformation of the brain, bones, muscle, blood, skin, hair, breasts, and sex organs. Physical growth—height and weight—accelerates in the first half of puberty and is completed when an adult
Catholic theology of the body Since he was free of the human need to sleep, he could see God without interruption. By giving in to temptation, he lost all these attributes. The importance of Christ for the human body is the restoration of the original status before the fall. Those who accept Christ are redeemed and become children of God, regaining eternal life. However those who live only by their body and its needs, will not share eternal life. The resurrected bodies will show beauty beyond human imagination. To show the way to this destination, the Son of God became human, and accepted the human