The goal of this study is to investigate the effects of a combined lifestyle program on the quality of life in people with Parkinson's Disease. Participants will be randomly assigned to one of two groups, both receiving standard care, a Parkinson Lifestyle Decision aid and an intake meeting with a lifestyle coach. One group will work on their goals independently, while the other group will get guidance from the lifestyle coach throughout the 12-month program. The program focuses on self-management, exercise, nutrition, sleep and stress. Participants will complete questionnaires after 0, 6 and 12 months, and use a wearable sensor for two weeks. The main outcome is quality of life over 12 months, measured with the PDQ-39 questionnaire. The study also examines personal goal achievements, symptom changes, and the economic effects of the program.