http://www.medpagetoday.com/OBGYN/Pregnancy/59701?xid=NL_breakingnews_2016-08-16&eun=g875301d0r
Prenatal exposure to acetaminophen was linked with a subsequent increased risk of behavioral problems in children, even after controlling for multiple confounders, a small cohort from a U.K. study found…
http://www.livescience.com/55754-does-sugar-make-kids-hyper.html
If a child eats cotton candy, a chocolate bar or any other kind of sugary treat, will a hyperactive frenzy follow? While some parents may swear that the answer is “yes,” research shows that it’s just not true…
All Things Chronic 
I’ve been told too that sugar doesn’t cause hyperactive kids. But I have three boys that it’s almost like a light switch for. I used to joke with one like watch what happens when I give him a sprite (bad parenting, I know). So we don’t use sugar in the house much at all. But crap…Tylenol! Ugh I used it A LOT while pregnant 😔
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I’m sure there are plenty of kids who have a sensitivity to sugar and all the chemicals that are added to sweets. And hyperactivity isn’t always caused by sugar and chemicals — sometimes, it’s just a part of our DNA. I don’t know what to think about the Tylenol, but I do think more research needs to be done. I just wish doctors were more careful with that drug.
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I’m sure it’s both DNA and sensitivity for mine.
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