The document discusses how hypnosis can help reduce postnatal depression and promote mental wellbeing during and after childbirth. It explains that hypnosis helps alleviate fear, tension, and pain during birth by promoting relaxation. Clinical evidence shows that hypnosis can significantly reduce the length of labor stages and decrease the need for pain medication. The document also outlines techniques taught in birth preparation classes like breathing, visualization, massage, and understanding the body's natural birthing process.