This is a myth which is considered a true fact by many people. But it is completely false. There is also research published regarding this matter. The research describes the process of Kapalbhati. Around 2000 research papers published on this topic. If you are doing it 1 time in 1 second, there is no harm, even hypertension gets cured, blocage starts curing, cholesterol and sugar level start balancing, and the weight starts managing. If you are a youngster and not facing any problems, then you can do it fastly. It is helpful for all.