The Effect of Exercise on the Brain in Type 2 Diabetes

Inclusion Criteria: * type 2 diabetes * no insulin therapy * 30-75 years old * physically inactive Exclusion Criteria: * MRI contraindications * psychological disorders * exogenous insulin therapy * history of coma, transient ischemic attack, head trauma, brain tumor, stroke, epilepsy, and other central nervous system diseases that could cause dementia or presence of dementia before T2DM * suffering from any disease with significant impact on exercise intervention participation such as: chronic heart disease (e.g. valve insufficiency ≥ grade 2) or significant arrhythmias, cardiac events less than one year ago (myocardial infarction, coronary artery bypass graft, percutaneous coronary intervention), clinical heart failure (oedema, shortness of breath), percutaneous coronary intervention less than one year ago, chronic obstructive pulmonary disease (COPD), cerebrovascular or peripheral vascular disease * severe hypertension (\>160/110 mmHg) * ongoing cancer, severe neuropathy (limiting exercise participation) * renal disease (GRF \<45 ml/min/1,73 m2) * inability to regularly participate in the exercise intervention * pregnancy * breastfeeding