Seasonal depression is a type of depression that occurs regularly every year at the same time.
The main cause of seasonal affective disorder, according to doctors, is specific hormonal changes in the body during this period every year. Some scholars advocate the theory of occurrence of seasonal depression due to lack of serotonin in the body, or “happiness hormone”. But this theory is not entirely untenable, because it can be applied only to the “winter depression”, as it was in the winter due to lack of sunlight in the human body can actually be a deficiency of serotonin.
First seasonal depression can manifest itself after the age of eighteen years. It is more common for women than for men. The intensity of the depression can be different – from mild to overt aggression, irritable, or, conversely, apathy.
Treatment of seasonal affective disorder is possible and necessary. Typically, patients are encouraged as much as possible to spend more time on the street, but if it is winter dark days, perhaps the prescription of antidepressants and light therapy.
Phototherapy is the direction of the full range of bright light in the patient’s eyes, sitting at a distance of about 300 meters from the light source. First session lasts several minutes. In the future, gradually increasing the duration of up to forty-five minutes. This treatment helps to reduce the amount of melatonin and increase the amount of serotonin in the brain produced, i.e. acts as antipressanta.