関連キーワード
1. Seasonal Affective Disorder (SAD)
2. Mental health
3. Well-being
4. Seasonal changes
5. Depression
6. Anxiety
7. Mood disorders
8. Light therapy
9. Circadian rhythm
10. Melatonin
11. Serotonin
12. Winter blues
13. Phototherapy
14. Vitamin D
15. Sleep disturbances
16. Psychotherapy
17. Cognitive-behavioral therapy
18. Psychological well-being
19. Coping strategies
20. Social support
21. Quality of life
22. Epidemiology
23. Risk factors
24. Prevalence
25. Symptomatology
26. Gender differences
27. Biological pathways
28. Genetic predisposition
29. Psychological interventions
30. Public health implications