a chap i hired for a few years is seriously ill with a brain tumor, top bloke, great worker and firm mate
he is no fool and has been investigating causes
there seems to be very few known links, but one is to a chemical used in mdf or customwood (not sure which, or if they are in fact the same thing)
but he worked as a cabinet maker renovator for years and used the stuff
he told me that they will not cut it when you buy it for safety reasons, but do not broadcast why
anyone else know of this?