anchor: Recent research raises questions about the connection between pesticide exposure and long-term health problems, such as chronic headaches, sleep disorders, vision problems, nerve damage, cancer and birth defects, Wuerthele said.
positive: Nerve damage is one of the chronic health problems that are connected to pesticide exposure.
negative: The research doesn't raise any questions about the relationship between chronic health problems and pesticide exposure, instead focusing on the short-term effects.