Ingrid has published more than 80 articles in international and national scientific journals. She also wrote the (anti)diet book called Smartsize Me, together with Wil Overtoom and Maartje Poelman. The book won the Golden Feather and the EMGO Societal Impact Award. Her second book is 'Terugval en verleidleiding; de kunst om af verlies te blijven'. Her third book appeared in 2018: Positive Lifestyle Change: What every professional should know about lifestyle and behavior change.

In 2013 she started Brickhouse Academy together with Wil Overtoom. Brickhouse Academy's goal is to translate scientific knowledge and insights on lifestyle and behavioral change for practical use in daily life by everyone. Brickhouse provides continuing education on behavioral change to health professionals. Brickhouse also provides an accredited Post-HBO education for lifestyle coaches, LeefstijlCoach Academy.

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Rony Oosterom-Calo, Ph.D., specializes in health behaviour change, mental health, and digital health solutions. Next to providing psychological treatment in her private practice, she helps companies develop digital interventions, bring their products’ UX to the next level, and helps them to find the sweet spot of science and UX. 

Rony started her career over a decade ago with a PhD research trajectory in which she combined academic, clinical, and industry research. She specialized in health behavior change and designed a digital intervention to motivate users to change their health behavior. Her subsequent experience includes managing clinical and UX research programs for digital health and medical product innovation in clinical and consumer settings in the Netherlands, USA, and UK. She has also led global marketing research programs in the health and wellness arena.