The "winter blues" season is upon us. As our exposure to daylight decreases over the winter months, millions of Americans suffer each year from the effects of seasonal affective disorder, or SAD, a ...

Seasonal affective disorder (SAD): is depression, often accompanied by sleep disturbance, that begins or is exacerbated during the parts of the year with little sunlight.. A light box (sometimes ...

As daylight diminishes people can feel their mood dimming. Experts say starting light therapy in the fall can help fend off winter depression. As the days get shorter, many people may also find their ...