Seasonal affective disorder
Doctors often cure SAD with light therapy. Sometimes a light comes on when you are asleep in the morning and gets brighter like a sunrise. Sometimes a person sits in front of a light box for half an hour or longer in the morning.
Some symptoms are:
- Feeling sad, grumpy anxious or moody
- Losing interest in your usual activities
- Eating more carbohydrates (eg: bread, pasta etc)
- Gaining weight
- Sleeping more and feeling sleepy during the day