Well thats quite an anecdote you have there but theres no scientific evidence to back up what youre saying is the case.
Of course not, it would not fit the propaganda agenda. Just like used motor oil causing cancer. Still not one proven case of this yet, all propaganda based on an agenda.
Now matter what “science” spouts, I have personal hands on experience from working with these extremists. They are absolutely worthless in a work environment that requires any physical strength or quick thinking.