Fluoride also causes the blood brain barrier to thin, So when a child has aluminum injected into them via vaccines it can cause brain DAMAGE
https://childrenshealthdefense.org/defender/babies-fluoride-lower-iq/
Babies Exposed to Higher Levels of Fluoride Score Lower on IQ Tests • Children's Health Defense
A new systematic review of all published studies evaluating the potential neurotoxicity of fluoride found the chemical is a “cognitive developmental hazard to humans.”
https://childrenshealthdefense.org/defender/babies-fluoride-lower-iq/