Eichin Chang-Lim, La Habra, California, is an optometrist and author of the book Talking About Adolescence: Supercharge Your Body and Brain Power, which discusses how teens may manage mood swings and stress to unlock their potential. After completing her master’s in microbiology at UNT, she began as a clinical researcher in a hematology lab at Harbor-UCLA Medical Center and later attended what is now Marshall B. Ketchum University. In her free time, she enjoys acting and photography.