Spray That  Mosquito?
  Researchers at the Neurotoxicology Division of the National  Health and Environmental Effects Research Laboratory performed a critical  analysis of research literature on pyrethroid-induced  neurobehavioral  toxicity and other adverse effects in adult animals.  Pyrethroids are a  class of synthetic chemical insecticides similar to the natural pesticide  pyrethrum.  They are commonly used for mosquito control.