Helen Fisher is one of the world's leading experts on love, relationships, and human personality. With more than 30 years of research and experience, she is a sought-after speaker, consultant, and author, having written six books and numerous articles on the topics of love and relationships.

Fisher has conducted groundbreaking research on the brain chemistry of love and attraction, using brain imaging technology to study the brains of people in love. Her work has revealed that love activates the same reward centers in the brain as addictive drugs, and that people in love often experience obsessive thoughts and feelings similar to those of addiction.

In her book Why Him? Why Her?, Fisher explores the idea that people are naturally attracted to different types of personalities based on their underlying biology. By categorizing people into four different "temperaments" based on their dopamine, serotonin, testosterone, and estrogen levels, Fisher provides a framework for understanding why some people are attracted to each other and others are not.

Fisher's work has been widely recognized and lauded, earning her numerous awards and honors. She is a fellow of the American Association for the Advancement of Science, and has been featured in major media outlets such as The New York Times, The Washington Post, Time Magazine, and CNN.

Beyond her research and writing, Fisher is also a sought-after speaker and consultant, regularly sharing her insights with groups around the world. She has worked with major corporations such as Procter & Gamble, Match.com, and Pfizer, helping them to better understand the complexities of human relationships.

Overall, Helen Fisher is a true expert in the field of interpersonal relationships, and her work has helped countless individuals and organizations better understand the science of love and attraction.