I posted about this last year. We got one of those "happy lights" that is supposed to help with SAD and we now pay more for our son to stay in after school care. After school care gets the kids outside whenever possible. This means he plays on the playground after school with his buddies for about 1.5 hours after school. This is usually the last 1.5 hours of daylight each day.
If the weather keeps the kids inside they go to the gym and run around in there.
We also encourage lots of physical activities with his brother when he gets home such as lots of building forts with the heavy cushions, "who can jump the most pillows" type games and playing chase in our basement.
It is still too early to tell if the light and making exercise a priority is going to help but it seemed to help last year.
