Poisoning is the study of how substances, chemicals, or toxins can cause harm to the human body through ingestion, inhalation, or absorption. Researchers in this field investigate the effects of various poisons on the body, the mechanisms by which they cause harm, and potential treatments or antidotes to counteract their effects. This research area is important for understanding how to prevent and treat cases of poisoning, as well as for developing safety guidelines and regulations to protect individuals from exposure to harmful substances.