I always blamed heavy metals myself.. Lord knows we have that in Tap water in every city.. In my case I was also directly exposed to heavy metals everyday at work (Electrician) Lead,Mercury,Aluminum,Copper. Not to mention head trauma and electric shock. As I see it there is no way to eliminate lead in city water systems what with the lead pipes that were commonly used in the past and the Solder joints that most houses older than 5 yrs have. Not to mention the Mercury most of us have in our dental fillings. And the mercury that can be found in almost any fresh water lake.
And talking about fillings , does anyone know if there are dentists out there that specialize in working with ALS patients ? Mine tends to be very nervous with the excessive choking and gagging while he trys to work.. (I can't even stay leaning back for five minutes without choking even if nothing is being done)