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
Explorers of the Human Body blindness, the Super Junior members taste very hot peppers and extremely bitter-tasting drinks to test the mysteries of the tongue. The Super Junior members also test the blindness of their eyes by doing eye-fooling tests. Many episodes do not simply involve the physical features of the body. Episode six revolves around balance and episode eight deals with crying and tears. Absentee: Kyuhyun Absentee: Kyuhyun Absentees: Kyuhyun and Heechul Absentees: Kyuhyun, Heechul (first and last parts of the show) and Han Geng (last part of the show) Absentees: Kyuhyun and Heechul Absentees: Kyuhyun, Kangin, Yesung and Heechul (first half of the