The thinking that autism is more prelevent at present

..
In the past before society was more open there were many undiagnosed conditions..more people were instituionised and
without knowing and researching data from the past we really dont know if there are more children who develop autism today.

Not so long ago even dyslexia was not fully understood and the child could be wrongly labelled as being lazy...of low iq resulting often in antisocial behaviour due to frustration felt by the child..A no win situation

I do think a healthy balanced diet adequet sleep and daily exercise is a childs birthright.Food additives to be avoided