Scientific reports showed that the ear starts forming a few days after conception and that the ear is fully developed by the fourth month of pregnancy. Tomatis theorized that information coming from the fetal ear stimulates and guides the development of the brain. He believed that a number of auditory communication problems begin in pregnancy, with the fetus not properly responding to the voice of the mother. Tomatis theorized that the whole body is involved in the production of speech and language. He stated that reading, even silent reading, is an activity of the ear. He recommended reading out loud, not only for children and by children, but also by adults, for 30 minutes a day. He claimed this not only stimulates the brain but is the best way to learn.