I live in Nova Scotia which is approximately the same latitude as Bangor, ME and Portland, OR. I typically notice my energy and mood begin to slip in late January due to mild SAD.
Everyone is different, but what works for me are Vitamin D supplements (as already suggested by @mattlancaster81
), getting outdoors periodically for fresh air (yes, even when it's uncomfortably cold), and light exercise. I also have a desk lamp with full-spectrum bulbs at the office. Additionally, I try not to schedule stressful projects during the winter months if possible, as I find it more difficult to mentally leave work (thoughts) at work (place).
Given the opportunity, I'd love to be a Canadian "snowbird". The Carolinas or thereabouts would suit me just fine January-March! :)
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.