So what exactly are EMFs? How do they work? Are there different types? This knowledge section aims to answer all these questions and more. Most sites do this in a paragraph or 2, if that's what your after the beginner section is for you. For those that want to get deeper into the subject the intermediate and advanced sections are where you should head. You may even have done some of your own research but still aren’t clear on some aspects, if so this page should be able to offer a different perspective at least.