 At baseline, a questionnaire regarding baseline characteristics marital status, education level, employment status, monthly household income, being advised to exercise by the treating oncologist, being on a diet with the purpose of losing weight, known with diabetes, hypertension, hypercholesterolemia, current medication and stage of behavioural change will be filled out. Medical record will be viewed by the researcher for additional patient characteristics like tumour stage at diagnosis see 5.1.3. 