Toxicology jobs study the effects of toxins on the human body. As a toxicologist, you may research pharmaceuticals in a laboratory to see if they're safe for human use, analyze a chemical to determine its potential risk, or study potential pollutants to help determine whether or not they need regulation. Laboratory assistants and other research staff frequently support toxicologists. Many people in this field work in controlled environments to limit potential exposure to toxins, so the ability to learn and follow safety protocols is essential to your success. Also, toxicology research tends to be slow and methodical, as different people react to chemicals in different ways, so most research involves testing a variety of circumstances to gain a complete understanding of a potential toxin's interactions with the human body.