Circadian Misalignment and Insulin Sensitivity

Inclusion Criteria: * Caucasian * Healthy (as determined by dependent physician based on medical questionnaire) * Male * Age: 18-35 years * Normal BMI (18-25 kg/m2) * Regular sleeping time (normally 7 - 9h daily) * Habitual bedtime at 11 PM ± 2 hours Exclusion Criteria: * Extreme early bird or extreme night person * Heavily varying sleep-wake rhythm * Shiftwork during last 3 months * Travel across \>1 time zone in the last 3 months * Engagement in exercise \> 3 hours total per week * Using \> 400mg caffeine daily * Smoking * Unstable body weight (weight gain or loss \> 3kg in the last 3 months) * Significant food allergies/intolerance (seriously hampering study meals) * Participation in another biomedical study within 1 month before the first study visit * Claustrophobia * Medication use hampering the study (as determined by responsible physician) * Recent blood donation. * Any contra-indication to the telemetric pill: * Any acute condition, exacerbation of chronic condition, or medical history that would in the investigator's opinion interfere with the study