1. Institute of Dentistry, Faculty of Health Sciences; University of Eastern Finland; Finland
2. Oral and Maxillofacial Department; Kuopio University Hospital, Kuopio; Finland
3. Institute of Clinical Medicine; University of Eastern Finland; Finland
4. Department of Psychiatry; Kuopio University Hospital; Finland
5. Institute of Biomedicine/Physiology; University of Eastern Finland; Finland
6. Institute of Public Health and Clinical Nutrition; University of Eastern Finland; Finland
7. Department of Biology of Physical Activity; University of Jyväskylä; Jyväskylä Finland
8. Oivauni Sleep Clinic; Finland
9. MRC Epidemiology Unit; University of Cambridge; Cambridge United Kingdom
10. Department of Clinical Physiology and Nuclear Medicine; Kuopio University Hospital; Finland
11. Kuopio Research Institute of Exercise Medicine; Finland