People develop depression for many reasons: the passing away of a loved one, loss of work, excessive stress, or thyroid conditions. Depression is associated with neurotransmitter abnormalities and the treatments, such as antidepressants or cognitive behavior therapy, aim to correct these neurotransmitter imbalances and improve mental and emotional wellbeing. Depression can come and go, or last for a long time. In either instance, it can significantly impact a person's quality of life. Depression is a complex disorder with a wide variety of causes.
Changes in the weather can cause depression, especially for people living in populations within the northern and southern latitudes. Seasonal affective disorder affects up to five percent of Americans. When the body adjusts to a new season, many changes take place, on both a hormonal and physical level. The adjustment to less sunlight can disrupt cognitive processes and emotions, leading to depression. Reduced sunlight had been linked with a drop in serotonin, which may trigger depression.
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