While I was surfing the Net last night, looking to see what my chances were of developing Alzeimers, as my level is 4 x the safe range, I came upon this about burning in the brain. It said for this to happen, there must be two toxins present there which fire off each other, hence causing the burning sensation. I think I've probably got about four! Interestingly two of my aunts died of Alzeimers. Something else to worry about! Love Tracy x PS Apparently some of the clays contain Aluminium