As the sun rises later and sets earlier during the winter months, odds are you feel sleepier and less motivated compared to other times of year. To some degree, that’s totally normal, says Dr. Alex ...

The shorter daylight hours and reduced sunlight in the fall and winter mean less light exposure, which can make you want to hit snooze on your alarm clock and sleep all day. This case of the seasonal ...

People commonly use sun lamps, also known as SAD lamps, to treat a form of depression called seasonal affective disorder (SAD). These lamps can also help a person’s body make vitamin D, which helps ...