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Seasonal affective disorder (SAD) may be a kind of depression that is associated with changes in seasons unhappy begins and ends at regarding constant times each year. If you are like the general public with unhappy, your symptoms begin within the fall and continue into the winter months, sapping your energy and creating you're feeling moody. Less often, unhappy causes depression within the spring or early summer.
Familial studies suggest a higher incidence of SAD among first-degree relatives, with genetic factors accounting for 1100 patients with seasonal mood symptoms. This suggests that genetic aberrations may underlie the various abnormalities, which cause SAD symptoms. Melatonin secretion occurs later in the night, and for longer periods during the early morning compared to healthy individuals.
