It's not surprising, most of us gain weight in the winter months right? It's cold, we can't get out much, there are fewer hours of daylight. I've also read that lack of sunlight contributes to the effects of depression which plays a role in weight management.
If you're outside you're walking, you're at a party and being social, you're enjoying nice weather, you're probably not sitting around watching tv so you're most likely engaging in a healthful activity.
Sunlight is very important to me. I practice my chi gong first thing in the morning facing the sun and absorbing its energy.
"Binging is a descent into a world where every restriction... is cut loose. At its core is a feeling of deprivation.. a feeling you can never get enough. Binges do not signify a lack of willpower or inability to care for yourself. On the contrary, binges are a urgent attempt to care for yourself when you feel uncared for. They are the voice of survival. Binges are the mark of the self that says, 'I am tired of feeling deprived, of being told I am wrong, that I am bad." - Geneen Roth