As the mercury in the thermometer drops and the last few leaves fall off the trees, many of us will be feeling a bit blue. But are we suffering from a standard case of the blues, or is it a sign of something bigger like Seasonal Affective Disorder (SAD)? According to AOL Body, here are the signs that it might be SAD:

• You crave comfort foods, especially carbs, and may even gain weight as a result
• You mood is distinctly worse during the winter -- but you perk up as soon as summer shows up again
• You're depressed throughout the day -- no just as certain times like mid-afternoon.
  
• You're depressed despite the absence of any sort of traumatic recent event that would cause it.
  
• You feel drowsy all day long, and can't seem to get enough sleep.

If you think you might have SAD, talk to your doctor. There are natural ways to treat the condition.