Seasonal Affective Disorder

Seasonal Affective Disorder (SAD) is a type of depression that tends to pop up at specific times of the year, usually during the autumn and winter months when the days are shorter. Unlike the occasional “winter blues,” SAD is a recognised clinical condition that can truly interfere with your daily life and well-being.

Main symptoms of seasonal affective
disorder

SAD symptoms can feel a lot like other types of depression, but they follow a seasonal pattern. Here are some common ones:

What you may not be aware of about
seasonal affective disorder...

1

Seasonal affective disorder
is very rare in Australia,
affecting approximately 1 in
300 Australians

2

35% of Australians
experience depression
during the winter months

3

SAD is thought to result
from shorter days disrupting
the body’s circadian rhythm,
reducing hormones like
melatonin and serotonin
that affect sleep and mood

4

SAD can be difficult to
diagnose and may take two
years of seasonal symptoms
before a diagnosis is made

What the research says
about seasonal affective
disorder

When it comes to treating Seasonal Affective Disorder (SAD), research highlights a few key approaches that stand out as particularly effective. First up, light therapy is often the go-to treatment for SAD. This involves sitting in front of a special light box that mimics natural sunlight, helping to regulate your body’s internal clock and boost your mood. Studies have shown that light therapy can be really effective, especially if you start it before the symptoms of SAD hit or at the first sign of them. It can help prevent a full-blown depressive episode and is even more effective when used with a light visor. Another treatment that has proven its worth is Cognitive Behavioural Therapy (CBT). This therapy helps people change negative thought patterns and behaviours, which can be particularly useful for those struggling with SAD. Some studies suggest that CBT alone or combined with light therapy can be just as effective as light therapy on its own. It also seems to have a longer-lasting impact, reducing the chances of relapse in future winters. When it comes to medication, the research is a bit more mixed. Antidepressants like sertraline have been shown to be effective and well-tolerated, but other medications, like fluoxetine, haven’t performed as well in studies compared to a placebo. Bupropion is another option that has shown promise, particularly in preventing future episodes of SAD, although it’s important to weigh its potential side effects. As for other treatments, some people find relief with physical exercise, which can be a great complement to light therapy. Herbal remedies, such as St. John’s Wort, have shown some benefit, but the evidence is not as strong for other options like Kava or Ginkgo biloba. In terms of what the research says about SAD itself, it’s a real condition that affects many people, especially during the darker months of the year. The symptoms are similar to those of major depression but are specifically tied to seasonal changes. There’s still ongoing debate about the exact mechanisms behind SAD, but the combination of light therapy, CBT, and medication seems to offer the best hope for managing and treating it effectively. In summary, light therapy and CBT are your best bets when it comes to treating SAD, with medications like sertraline and bupropion also being useful in some cases. Each person’s experience with SAD can vary, so it might take some experimenting to find what works best for you.
Our Psychologists are highly qualified with Masters or Doctorate degrees in Clinical Psychology. They
use Cognitive Behaviour Therapy (CBT), the gold standard for many psychological issues, along with
other evidence-based treatments like Mindfulness and Dialectical Behaviour Therapy (DBT).