Susanna Søberg is a leading international expert in health science, specializing in metabolism and the use of cold and heat as tools for stress management and overall physical and mental health. She earned a Ph.D. in metabolism from The University of Copenhagen, where she researched the impact of stressors on brown and white fat. Dr. Søberg is the founder of the Søberg Institute, where she communicates her knowledge through online programs, books, social media, podcasts, talks, and workshops.
Dr. Søberg is best known for her "Søberg Principle," which emphasizes the importance of allowing the body to reheat naturally after cold exposure to activate brown fat and boost metabolism. This principle, named by Dr. Andrew Huberman, suggests ending cold exposure without external rewarming. Her research has demonstrated that even small amounts of cold exposure, between 3 to 11 minutes per week, can have significant health benefits, including improved metabolism, increased stress resistance, better mood and mental sharpness, a strengthened immune system, and improved sleep. She is also the creator of the Thermalist Method, which trains practitioners in contrast therapy and breathwork. Dr. Søberg has also advised world-class athletes like Cristiano Ronaldo. In addition to her research and educational activities, Dr. Søberg is the author of "Winter Swimming," a book that explores the science-backed benefits of cold water exposure.
