Childhood exposure research focuses on studying the impact of various environmental factors on children's health and development during their early years. This field examines how exposure to different substances, pollutants, and stressors can influence physical, cognitive, emotional, and social development in children. Researchers in this area may investigate the effects of exposure to things like lead, tobacco smoke, pesticides, and air pollution, as well as experiences such as violence, neglect, and poverty. The findings from childhood exposure research can help inform policies and interventions to protect children and promote their well-being.