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Red flags of “winter illnesses” that are actually common in the summer too

A mental health expert has warned that people in the UK could be suffering from a condition that many of us only expect to see in winter, causing many people to miss the signs and symptoms. Lisa Gunn Mental Health Prevention Lead at Nuffield Health on how to recognize the symptoms of seasonal affective disorder in the summer

About 10% of cases of seasonal affective disorder (SAD) occur in the summer months – characterized by a sudden onset of depression or low mood. It is usually associated with a lack of natural light in the winter months and is sometimes treated with special lamps.




The NHS defines seasonal affective disorders as “a type of depression that comes and goes in a seasonal pattern.” The condition is characterized by changes in mood, energy levels, sleep patterns and other symptoms that coincide with seasonal variations in light and temperature.

Lisa said: “SAD is usually associated with the cold, dark winter months. Most people with SAD see their symptoms appear during the fall and begin to fade during the spring when things start to brighten.

“This is not the case for people with summer seasonal depression. This type of SAD is rarer and sees a complete reversal of the symptom cycle. People with summer SAD usually see signs of symptoms in the spring that eventually begin to disappear during the fall.

“The research points to that about 5% of people in the UK will experience some form of SAD during the year. When it comes to SAD in the summer, it is estimated that about 10% of all SAD cases appear in the warmer months. Experts and clinicians aren’t sure what causes seasonal depression in the summer months.”

A number of physical, environmental and psychological factors are thought to contribute to the feelings of depression and low mood that come and go as the seasons change.

Potential causes include:

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