App-Based Mindfulness for Attenuation of Subjective and Physiological Stress Reactivity in a Population With Elevated Stress: Randomized Controlled Trial

Ulrich Kirk   ¹ , PhD ;   Walter Staiano   ^{1, 2} , PhD ;   Emily Hu   ³ , PhD ;   Christelle Ngnoumen   ^{3, 4} , PhD ;   Sarah Kunkle   ³ , PhD ;   Emily Shih   ³ , PhD ;   Alicia Clausel   ³ , MSc ;   Clare Purvis   ^{3, 5} , PhD ;   Lauren Lee   ³ , PhD

¹ Department of Psychology, University of Southern Denmark, Odense, Denmark

² Department of Physical Education and Sport, University of Valencia, Valencia, Spain

³ Headspace Inc, Santa Monice, CA, United States

⁴ Department of Psychology, Harvard University, Cambridge, MA, United States

⁵ Clinical Excellence Research Center, School of Medicine, Stanford University, Stanford, CA, United States