causes interference causes internal causes irritation causes it causes large causes less causes little causes liver causes loss causes low causes lower causes lung causes major causes massive causes may causes may include causes memory causes mental causes mild causes minimal causes more causes more damage causes more deaths causes more problems causes movement causes much causes multiple causes muscle causes must causes nausea causes nerve causes no symptoms causes not causes obesity causes of accidents causes of acne causes of action causes of acute causes of air causes of anxiety causes of autism causes of back pain causes of bad causes of biodiversity causes of blindness causes of blood causes of cancer causes of car causes of child causes of childhood causes of chronic causes of climate change causes of conflict causes of conflicts causes of constipation causes of corruption causes of crime causes of damage causes of death causes of deaths causes of deforestation causes of dementia causes of depression causes of diabetes causes of diarrhea causes of disability causes of disease causes of diseases causes of divorce causes of dry causes of early causes of erectile causes of errors causes of excessive causes of failure causes of fatigue causes of female causes of fibromyalgia causes of fire causes of food causes of global warming causes of hair causes of hair loss causes of health causes of hearing loss causes of heart causes of high causes of human causes of hunger causes of illness causes of impotence causes of increased causes of infant mortality causes of infertility causes of injury causes of insomnia causes of irregular causes of loss causes of low