Pesticides may cause acute and delayed health effects in people who are exposed. Pesticide exposure can cause a variety of adverse health effects, ranging from simple irritation of the skin and eyes to more severe effects such as affecting the nervous system, mimicking hormones causing reproductive problems, and also causing cancer. A 2007 systematic review found that "most studies on non-Hodgkin lymphoma and leukemia showed positive associations with pesticide exposure" and thus concluded that cosmetic use of pesticides should be decreased. There is substantial evidence of associations between organophosphate insecticide exposures and neurobehavioral alterations.  Limited evidence also exists for other negative outcomes from pesticide exposure including neurological, birth defects, fetal death, COUNT 3
QSN1 Can pesticides have a serious effect on people? ANS1 cause acute and delayed health effects QSN2 What is one of the most serious effects of exposure to pesticides? ANS2 cancer QSN3 What is thought to possibly cause neurobehavioral alterations? ANS3 organophosphate insecticide exposures