Seasonal Affective Disorder (SAD)   If you notice periods of depression that seem to accompany seasonal changes during the year, you may suffer from seasonal affective disorder (SAD). This condition is characterized by recurrent episodes of depression – usually in late fall and winter, when the number of hours of sun is decreased. Natural melatonin levels drop and less sun exposure decreases the brain chemical serotonin, which affects mood. WHAT ARE THE SYMPTOMS OF SAD? Symptoms of … [Read more...]