From Fatigue to Sadness: Common Symptoms of Seasonal Affective Disorder
As the days grow shorter and colder, many people notice a shift in mood and energy. For some, these changes go beyond the typical “winter blues” and may be symptoms of Seasonal Affective Disorder (SAD), a form of depression linked to seasonal changes. SAD most commonly begins in late fall or winter, when exposure to natural sunlight decreases.
Seasonal Affective Disorder can affect daily functioning, sleep, appetite, and motivation, and it impacts roughly 10 million Americans each year. Recognizing the early signs of SAD is essential for maintaining emotional well-being and seeking support when needed.
How Does Reduced Sunlight Impact the Body?
Reduced exposure to sunlight can trigger changes in the body that contribute to SAD, including:
- Reduced daylight disrupts the circadian rhythm (the body’s internal clock)
- Increased melatonin production, leading to fatigue and low energy
- Decreased serotonin levels, which affect mood and motivation
- Lower vitamin D levels due to reduced sunlight exposure
What are Some of the Emotional Symptoms of Seasonal Affective Disorder?
SAD often first appears as changes in mood and behavior. Noticing these patterns, especially outside of spring and summer, can help differentiate SAD from everyday stress or occasional low moods. Some of the most common emotional symptoms of seasonal affective disorder include:
- Increased anxiety or excessive worry
- Difficulty concentrating or making decisions
- Persistent feelings of sadness, hopelessness, or irritability
- Loss of interest in social activities or hobbies once enjoyed
- Cravings for carbohydrates or sweets, which may worsen energy levels
How Does Seasonal Affective Disorder Affect the Body Physically?
SAD doesn’t just affect emotions; it can have a real impact on your body as well. Key physical symptoms to be aware of include:
- Weight gain or changes in appetite
- Increased fatigue, even after sufficient sleep
- Changes in sleep patterns, such as oversleeping or difficulty staying awake
- Low energy and lack of motivation, making daily tasks feel more challenging
Practical Ways to Cope with SAD
Several strategies can help you manage the symptoms of seasonal affective disorder mood changes:
- Light Therapy: Exposure to specialized lamps that mimic natural sunlight can boost mood
- Regular Exercise: Even short walks outdoors can benefit both mental and physical health
- Balanced Nutrition: Eating regular, nutrient-rich meals helps stabilize mood and energy
- Consistent Sleep Routines: Going to bed and waking up at the same time each day supports energy levels
- Mindfulness Practices: Meditation, journaling, or deep breathing exercises reduce stress and negative thought patterns
The Power of Vitamin D
Shorter days and reduced sunlight during fall and winter can lower vitamin D levels, which may influence mood and energy. Including vitamin D–rich foods (such as fatty fish, fortified dairy, or eggs) or discussing supplementation with a healthcare provider may help alleviate some symptoms of seasonal affective disorder and support your overall health.
Recognizing SAD Early: Help, Hope, and Healing at HHLI
Early recognition of SAD is essential. By understanding the emotional and physical symptoms of seasonal affective disorder, individuals are better equipped to seek the support they need.
HHLI’s Behavioral Health Department offers compassionate, personalized care, including individual, family, and group treatments, as well as medication services for anxiety, stress, depression, and ADHD. Care begins with a comprehensive individual evaluation and a personalized treatment plan that supports emotional, behavioral, social, and medical well-being.
Help is always available. Call 516-422-TALK (8255).
