"If you’ve been feeling down, irritable, or low on energy or if you've been craving sweet or starchy foods or sleeping more or less than usual, you may be experiencing seasonal affective disorder (SAD), a type of depression that’s common in the winter months.
If you are, you’re not alone. As the hours of daylight decrease and the temperature outside gets chilly during the winter, many people experience symptoms like these. The duration and severity can vary significantly from one person to another—but the good news is that you don’t have to suffer until spring. You can take steps now to ease these symptoms."