1. Exercise-- IN NATURAL DAYLIGHT. No matter how overcast, it's still better to get that natural full-spectrum light.
2. MORE light-- full spectrum fluorescent bulbs can be had at any home improvement store-- beware that they can disrupt circadian cycles if you use them late in the day, but having one at your breakfast table or where he gets ready for school in the mornings might help.
2 is easy. We even had a special light for my wife's SAD that we use. Not that it seems to help but we try anyway.
1 is hard. He outright refuses to exercise most days, though he seems to enjoy gym class at school. I'd love him to get more, but he's at that age that I don't want to force him - the motivation needs to start becoming intrinsic.
