We are all chemical engines. So, what exactly is a chemical? Chemicals are anything that occupies space in the universe and exist in either a solid, liquid, or gas form – matter! Chemicals within living organisms are considered biochemicals and are organized into chemical networks (an integrated chemical process that establishes life and the maintenance of homeostasis). Homeostasis is simply a scientific term that means maintenance of the status quo. So, a healthy living organism must respond to its environment and manage different threats. The systems that are designed to ensure that the cell remains healthy are called homeostasis. Drugs are also chemicals. Drugs enter an organism and make their way through biological systems to interact with many chemicals. Sometimes those interactions lead to changes in the chemicals with which the drugs interact, altering one’s physiology or psychology. One must have a keen understanding of basic scientific terminology, these chemical networks, and biological systems to create drugs and use them to make a difference in all patient populations. Ready? Let’s get started.