関連キーワード
1. Seasonal affective disorder
2. Mental health
3. Depression
4. Psychological impact
5. Winter blues
6. Light therapy
7. Circadian rhythm
8. Melatonin
9. Serotonin
10. Sleep disturbance
11. Vitamin D deficiency
12. Biopsychosocial factors
13. Cognitive functioning
14. Coping strategies
15. Suicidal ideation
16. Social isolation
17. Emotional regulation
18. Quality of life
19. Clinical manifestation
20. Prevalence
21. Epidemiology
22. Gender differences
23. Age-related factors
24. Cultural factors
25. Genetic predisposition
26. Comorbidities
27. Treatment options
28. Psychotherapy
29. Pharmacotherapy
30. Public health interventions