This revealed the physical harm children suffered while working in factories, an effect of child labor. Some teenagers were “killed in gas explosions (industrial revolution)”. Some children lost limbs, while others were burned by cars. Not only were teenagers harmed by the machines, but they were also mistreated by supervisors and were chained if they ever tried to escape from the factories. “...sometimes they beat me if I'm not quick enough with my hands; they hit me in the back (Grolier Multimedia Encyclopedia).” A boy testified: “…. the child workers in that factory were locked up night and day." Most mills, such as textile or cotton mills, were operated with heavy chemicals such as formaldehyde, azo dyes, benzidine, and many other chemicals. The children had no choice but to inhale these chemicals which deteriorated their bodies. The continuation of physical and mental abuse of children has revealed the deterioration of the emotional state of adolescents. Working in factories, children were kept away from their families and friends, which led to isolation. Isolation led to the outcome of depression. Due to depression, some victims of child labor have turned to “drug use (J. Humphries 4).” This depression caused children to lose hope and motivation