My female is probably too young to have the winter months affect her or anything, but she has changed recently. She's been more friendly, and active. I think its because I finally fixed up the temperatures in the tank though. Since I got the warm and cool sides around 90 and 80, she's been more friendly and outgoing. Or maybe she's finally really settled in. It's only been a month and a half that she's been in my care, so I dunno.