Dr. Mayberry earned a bachelor's degree in biology from Xavier University in New Orleans. She later earned a master's degree in biology and a doctorate in environmental toxicology, both from Texas Southern University. After working for Exxon and BP, she was recruited by NASA and became the first female space toxicologist in the world. Her job is to keep astronauts safe from environmental toxins in space.
Her book, "Talking Toxicology" (NKM Consulting), is an Amazon best-seller, and she has a line of detoxing supplements. She has been dubbed the "Tox Doc."