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Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
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Seasonal Affective Disorder

Symptoms & Signs

What are the signs and symptoms of the condition?

Symptoms associated with SAD can vary, depending on how severe the condition is. Symptoms include:

depression that begins in the fall or winter

lack of energy

decreased interest in work or other activities

increased appetite with weight gain

carbohydrate cravings

increased sleep, with more daytime sleepiness

social withdrawal

afternoon slumps with low energy and poor concentration

slow, sluggish, lethargic movements

These symptoms usually occur during the "seasonal period" that affects a person and then goes away after that particular season. The symptoms then tend to reappear the following year at the same time.