Thanks for asking this question. However, sample size is pretty large. There is a whole community of Sadhus and monks practising this for centuries. This is sim

Thanks for asking this question. However, sample size is pretty large. There is a whole community of Sadhus and monks practising this for centuries. This is simply a part of Yoga. Sample size seems small because Wim wants to hide his sources. See my other comment[1]. https://news.ycombinator.com/item?id=24801967 https://news.ycombinator.com/item?id=24801967