In many cultures around the world, a child is considered to be nine months old at the time of birth. This is because the baby has been alive and conscious in the womb during that time. While a baby is developing in the womb of their mothers, they are affected by her mental and physical well-being. Prenatal yoga can encourage health in the unborn child by relaxing the mother's body, mind and spirit. Thus the child is given a more peaceful home to live in. Additionally, prenatal yoga can benefit the birthing process by increasing the strength and flexibility of the muscles, tendons and joints that are used during childbirth.