Marian Rojas Estapé is a Spanish psychiatrist and author specializing in the intersection of neuroscience, psychology, and emotions. Working with the Spanish Institute of Psychiatric Research, she is an authority on stress management and somatic health, known for explaining how cortisol affects the brain and body. Her expertise stems from her clinical practice and research into happiness, which informs her global lectures and her bestselling book, “How to Make Good Things Happen”.