Clinical Research Directory

Inclusion Criteria: * 18-22 years of age women. * BMI between ≥18 and \<25 kg/m2 * Are willing to be randomized to either of these 4 groups. * Must be sedentary (i.e., do not perform exercise or go to the gym). * Participants should have regular menstrual cycles. * Must be willing to adhere to all study procedures, including attendance at all study visits. * Must be willing to have biological samples stored for future research. * Must accept the use of the Period Calendar and Google Fit Apps on their mobile phones. Exclusion Criteria: * Diabetes mellitus (determined based on fasting glucose levels defined by ADA criteria). * Any other active endocrine disease (thyroid disease, any signs of Cushing's syndrome, adrenal disease and lipid-associated disorders such as familial hypercholesterolemia). * Any cardiac disease (i.e., ischemic cardiac disease, arrhythmias, severe heart failure). * Use of medication known to influence glucose and/or lipid metabolism or brown fat activity (e.g., beta-blockers, antidepressants, corticosteroids). * Use of medication shown to increase risk of hypokalemia after salbutamol administration (e.g., xanthine derivatives, steroids and diuretics). * Clinically relevant abnormalities in clinical chemistry or electrocardiogram (ECG) at screening (to be judged by the study physician). * A first-degree family member with sudden cardiac death. * Any chronic renal or hepatic disease. * Any other contra-indications for the use of salbutamol or propranolol. * Abuse of alcohol or other substances. * Smoking. * Current participation in another research projects that may influence the current research project. * Use of beta-adrenergic receptor agonists (e.g., asthma). * Polycystic ovary syndrome. * Diagnosed psychotic conditions.