Fall mood changes1 Seasonal Mood Changes in Fall: Why Sensitivity Increases and How to Stabilize It Fall can bring mood swings and irritability. Understanding the science behind seasonal changes and adding small daily habits can help you stay emotionally balanced.🌞 Less Sunlight = Lower Serotonin LevelsFall means shorter days and less sunlight exposure.Reduced sunlight lowers serotonin — the “happy hormone” — that plays a vital role in mood stability.That’s why some people feel inexplicably s.. 2025. 9. 12. Previous 1 Next