What is the Cause of Seasonal Affective Disorder (SAD)?

What Causes Seasonal Affective Disorder (SAD)?

To successfully treat and prevent recurrence of seasonal affective disorder we need to understand and — if possible — remove the underlying causes and risk factors. We need to ask: "What else is going on inside the body that might allow seasonal affective disorder to develop?"

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Accurate diagnosis of the factors behind seasonal affective disorder consists of three steps:

Step 1: List the Possible Causative Factors

Identify all disease conditions, lifestyle choices and environmental risk factors that can lead to seasonal affective disorder.

Step 2: Build a Symptom Checklist

Identify all possible symptoms and risk factors of each possible cause.

Step 3: Rule Out or Confirm each Possible Cause

A differential diagnosis of your symptoms and risk factors finds the likely cause of seasonal affective disorder.

Arriving at a Correct Diagnosis

The Analyst™ is our online diagnosis tool that learns all about you through a straightforward process of multi-level questioning, providing diagnosis at the end.

If you indicate suffering from depression, The Analyst™ will ask further questions including this one:

Does your depression seem to develop or worsen during the darker winter months? This is sometimes known as Seasonal Affective Disorder (SAD).

Possible responses:

→ Not applicable / don't know
→ No
→ A little
→ Noticeably
→ Very definitely

Based on your response to this question, which may indicate either lack of seasonal affective disorder or seasonal affective disorder, The Analyst™ will consider or rule out various possibilities.

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