SEASONAL AFFECTIVE DISORDER DOESN'T JUST AFFECT YOU--IT AFFECTS THE WHOLE ECONOMY. WE SHINE SOME LIGHT ON WHY YOU'RE DEPRESSED IN THE DARKEST MONTHS AND WHAT WE CAN DO ABOUT IT.
Consider Stockholm, London, Frankfurt, and Toronto. Each of them has stock exchanges, each of them have dark winters. Weirdly enough, you can see the weather in the stocks.
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To read the original article: How Seasonal Affective Disorder Twists Our Decisions | Fast Company | Business + Innovation