Valkee Projects Light Onto Your Brain. Literally!
In the Arctic latitudes we have a condition that most others closer to the equator don't know of, its called Seasonal Affective Disorder (SAD), or winter depression for the rest of us. It is mainly due to the lack of sun light we get in these latitudes during the winter time. According to the all knowing Wikipedia in Northern Europe 2% of the population suffer from winter depression and roughly 10% feel slightly down beat during the dark winter months. I personally only need a bit more sleep during the winter time, but I'm pretty hyper anyway, so perhaps a bad proxy. That said, Wikipedia also tells us that Symptoms of SAD may consist of: difficulty waking up in the morning, tendency to oversleep as well as to overeat, and especially a craving for carbohydrates. Other symptoms include a lack of energy, difficulty concentrating on completing tasks, and withdrawal from friends, family, and social activities. Some might think one is just describing the average Finn.
