'Sure, the winter presents us with many
practical challenges, like coping with colds and flu and getting to work
through the snow, but what these new studies suggest is that the season
doesn’t have some mystical, malevolent effect on our brains. If
anything, the data suggest that our minds are more sprightly at this
time of year than in the summer. Now there’s some news to brighten your
day — even if it’s an abysmally cold, short one."
Why Your Brain Actually Works Better in Winter