M.Sc. Mari Petäjä defends the doctoral dissertation in Health Promotion "The Psychological Flexibility in Lifestyle Change: Results of a Peer-Tutored Acceptance and Commitment–Based Two-Year Lifestyle Intervention".
Opponent Professor Tiina Laatikainen (University of Eastern Finland) and Custos Professor Sami Kokko (University of Jyväskylä).
The event is held in Finnish.
