A box breath is a very easy tool to use in the evening before heading to sleep. It helps to release any stress and tension accumulated during the day. You will have a much better sleep and wake up fresh and relaxed. It works on the parasympathetic system which acts directly on the nervous system. Dominique, kundalini teacher based in Geneva Switzerland, is showing us the easy step to do a Box Breath. You can also book private classes with her online and on zoom. Here more info