This booklet is looks at why people might use these complementary therapies. This includes relaxation techniques after a diagnosis of breast cancer, and what you may need to think about before trying them. It looks at complementary therapies such as acupuncture, reiki and massage. It also describes some popular relaxation techniques, including meditation and mindfulness, and has information on yoga, Tai Chi and Chi Gung. Last reviewed February 2018, next review 2020.