https://www.wired.com/story/science-explains-why-we-should-work-shorter-hours-winter/

For many of us, winter, with its chilly days and long nights, brings with it a general sense of malaise. It’s harder to peel ourselves out of bed in the half-light of morning, and hunched over our desks at work, we can feel our productivity draining away with the remnants of the afternoon sun.

This story originally appeared on WIRED UK.