As autumn deepens and daylight hours shorten, many people notice shifts in their energy, mood, and motivation. For some, these changes are mild and manageable. For others, the transition into winter brings a much more significant impact—what we recognise clinically as Seasonal Affective Disorder (SAD).
SAD is a form of depression linked to seasonal change. While symptoms can occur in spring or summer, the most common pattern is depression emerging in late autumn and lasting through winter.
At Bloomfield Health, we regularly support patients who find this time of year particularly challenging. The good news is that SAD is treatable, and early intervention can make a substantial difference.
What Is Seasonal Affective Disorder?
Seasonal Affective Disorder is a subtype of depressive disorder with a seasonal pattern. It is characterised by depressive symptoms occurring predictably at a particular time of year, most often during periods of reduced natural light.
Why does SAD happen?
Evidence suggests several biological and psychological mechanisms may be involved:
NICE acknowledges light therapy, psychological therapy, and antidepressant medication as treatment options for seasonal depression, depending on individual needs.
Common Symptoms of SAD
Symptoms vary but often include:
If these symptoms occur reliably each winter, SAD may be the underlying cause.
Why This Time of Year Matters
As we move into the darker winter months, people are exposed to significantly fewer hours of sunlight. In the UK, daylight can fall to just 7–8 hours per day in December, and many people leave for work and return home in darkness.
This seasonal shift can trigger symptoms even in individuals without a history of mental illness. For those with underlying vulnerabilities—such as previous depression, anxiety, or trauma—the impact can be stronger.
Recognising early signs and seeking support prevents symptoms from escalating.
How We Assess Seasonal Affective Disorder at Bloomfield Health
Our clinicians take a careful, structured approach, including:
This allows us to create a highly personalised care plan.
Evidence-Based Treatment Options
1. Psychological Therapy
Talking therapies can be highly effective for SAD. We offer:
2. Medication When Appropriate
For moderate to severe symptoms, antidepressant medication—particularly SSRIs—can be helpful. Research suggests that starting medication before symptoms fully emerge may be beneficial for people with a strong seasonal pattern.
At Bloomfield Health, medication is always prescribed cautiously and collaboratively, considering:
Your consultant psychiatrist will guide you through options and monitor progress closely.
3. Phototherapy (Light Therapy)
Light therapy is often a first-line treatment for SAD. It involves daily exposure to a 10,000-lux light box, usually for 20–30 minutes each morning.
Benefits can include:
Not every device on the market meets clinical standards. At Bloomfield Health, we can advise you on evidence-based, safe phototherapy options.
Practical Strategies You Can Start Now
Alongside clinical treatment, small adjustments can help reduce the intensity of winter symptoms:
These are complements, not replacements, for professional support where required.
When to Seek Professional Help
Consider booking an assessment if you notice:
Early intervention leads to better outcomes and reduces the risk of symptoms recurring each year.
How Bloomfield Health Can Support You
Our team provides:
Whether you’re experiencing SAD for the first time or have struggled for many years, the approaching winter doesn’t have to be something to fear. With the right treatment and support, recovery is highly achievable.
If you’re noticing your mood shift as the days get darker, contact Bloomfield Health to arrange a consultation with one of our clinicians.
We are registered by the Care Quality Commission (CQC),
the independent regulator of health and social care in England.
