関連キーワード
1. Seasonal affective disorder
2. Mood disorders
3. Winter depression
4. Light therapy
5. Circadian rhythm
6. Melatonin
7. Serotonin
8. Depression
9. Anxiety
10. Sleep disturbances
11. Daylight
12. Photoperiod
13. Vitamin D
14. Biological clock
15. Psychosocial factors
16. Genetic predisposition
17. Dopamine
18. Negative affect
19. Cognitive impairment
20. Brain activity
21. Seasonal variations
22. Social support
23. Stress
24. Resilience
25. Psychotherapy
26. Medication
27. Cognitive behavioral therapy
28. Lifestyle interventions
29. Exercise
30. Coping strategies