11/21/2025
How is SAD diagnosed?
If you’re noticing your energy dip or your mood shift with the seasons, you’re not alone...and it’s worth talking to your healthcare provider or a mental health professional. They may use questionnaires or a short assessment to help determine whether what you’re experiencing meets the criteria for Seasonal Affective Disorder (SAD).
A diagnosis typically means:
You’re experiencing symptoms of major depression (or more specific seasonal-related symptoms).
These symptoms show up during the same season, often winter or summer, for at least two consecutive years.
These seasonal episodes happen more often than any depressive symptoms you’ve had at other times in your life.
How is SAD treated?
The good news? There are evidence-based treatments that help. Depending on your needs, your clinician may explore:
✨ Light therapy
✨ Psychotherapy
✨ Antidepressant medication
✨ Vitamin D
These can be used on their own or layered together for more support.
Can SAD be prevented?
Because winter-pattern SAD tends to be predictable, some folks explore starting treatment before symptoms usually show up. Research is still limited on whether early intervention fully prevents SAD, but it’s absolutely a conversation worth having with your provider, especially if you’ve experienced SAD before.
If you’re curious about what support could look like for you, our team at Cherry Tree Counselling is here to help. You can book a call or reach out to connect with a therapist anytime by visiting cherrytreecounselling.ca