Changes

==How does autism develop?==

==How does autism develop?==

Although no one knows how autism develops, experts have focused on physical causes such as environmental toxins, the vaccine preservative [[thimerosal]], and the diet of both the mother (pre-birth and during breastfeeding) and child.

Although no one knows how autism develops, experts have focused on physical causes such as environmental toxins and the diet of both the mother (pre-birth and during breastfeeding) and child.

Some experts have speculated about [[genetic predisposition]].  

Some experts have speculated about [[genetic predisposition]].