[custom_adv] Mining Worker: This job is one of the hardest and most dangerous jobs in the world. Many people die in events that occur in mines. Just imagine that you should work for hours under the ground and in a dark place. One of the complications of working in this environment is the lung discomfort that occurs. [custom_adv] Crab catch in very cold areas: People in the area are catching crabs, they are very heavy, stressful and unhealthy. Dragging and lifting heavy tows and cages under very bad and cold weather conditions is an extremely difficult task. [custom_adv] Firefighters: The workers of this profession are also people who are endanger themselves in the most difficult and dangerous situations to save lives. [custom_adv] Sewage Drainage: All workers are not in a difficult situation, but people who perform drainage and sewage works are one of the toughest things in the world. Workers working in the wells may have no safety features to deal with the flammable gases inside the wells and dirt that are there.