Growth
Growth How do you grow ? Our body is composed of millions of cells. They are so small that they can only be seen under a powerful microscope. We grow as these cells divide in two again and again to make new cells. This is called cell multiplication and mostly happens when we are young. We look young because most of our body is made from new cells. Most people live until they are 70 or more. During this time, their body undergoes many changes from growing during childhood to slowly deteriorating in old age. What is puberty? What happens at puberty? Puberty is the time when the body begins to change from a child's to an adult's. A gif begins to grow breasts and her hips become wider. She grows hair around her genitals. Eventually, her monthly periods or menstruation begin. A boy's testes begin to grow and produce sperm. He begins to grow hair on his chin and his voice deepens Body changes We are born with sexual or reproductive organs. These organs enable us to ...