Daniel Ek, MSc, is a registered psychologist with an acceptance and commitment therapy (ACT) focus and works as a lecturer and mindfulness teacher. He is also the co-founder of Friendship Lab, which provides skills training in the art of strengthening relationships.
Pär Flodin, PhD, has a doctorate in cognitive neuroscience at Karolinska Institutet. There he is now an active researcher in psychiatric epidemiology and maps the prevalence and causes of mental illness.