This is a very long video with extremely important medical benefits for EVERYONE!! As it is quite technical, listen at least from 151 of the video which I post here [FROMTHAT SPOT ] if you have a bit more time: from 133.15, and if you wish, of course, the whole video if you really understand the science of having to lecture to doctors or to the MOH https://www.youtube.com/watch?v=Eg6HXMaBstQ&t=6664s