Depression can be the only symptom for some allergies
This winter, millions of Americans will become depressed because of Seasonal Affective Disorder (SAD). Symptoms of SAD include brain fog, anxiety, irritability, overeating, difficulty concentrating, and depression all of which are thought to occur because of the reduction in daylight. Allergy and asthma sufferers must be especially wary of depression during the winter, as recent studies suggest a strong link between allergies and depression.
A 2006 study at Columbia University’s School of Public Health showed that women with major depression are more likely to have allergies, and allergies appear to be more common in men with nervous, anxious personalities. Researchers cannot fully explain the link between allergies and depression, but they speculate that depression contributes to the development of allergies by impairing the immune system. Conversely, the stress of dealing with chronic allergies may lead to depression. Click to read more about the effects of allergens on your mental health.