Biohacker refers to someone who is actively involved in the pursuit of optimizing their physical and mental performance using biohacking techniques. A synonym for a biohacker could be a "health hacker" or "biology hacker" as they use knowledge and techniques from a variety of fields, including biology, nutrition, and genetics. Other synonyms could include "bio-optimizers" or "human optimizers". They focus on self-experimentation and use techniques such as nootropics, meditation, and exercise to enhance their cognitive abilities, physical performance and longevity. They are not afraid to challenge the status quo and are always seeking to understand how the body works to achieve optimal health and well-being.