Dr. Charles Walker, Precision Spine Care’s clinical psychologist and neuropsychologist, discusses a serious condition that many face over the winter months — Seasonal Affective Disorder. According to the American Psychiatric Association, “Seasonal affective disorder is a form of depression also known as SAD, seasonal depression or winter depression. People with SAD experience mood changes and symptoms similar to depression. The symptoms usually occur during the fall and winter months when there is less sunlight and usually improve with the arrival of spring. The most difficult months for people with SAD in the U.S. tend to be January and February.” More from KETK.