A new book explains how “social jet lag” is interfering with our internal clocks:

“Modern human beings are not much like mimosas. It’s true that both have biological clocks, but only one of us has culture. And culture, delightful as it is, turns out to radically complicate—“fuck up” would not be an overstatement—our relationship to time.

“Among species, we humans are to time what Polish villagers have long been to place: unhappy subjects of multiple competing regimes. The first regime is internal time: the schedule established by our bodies. The second is sun time: the schedule established by light and darkness. These two we share with houseplants and virtually every other living being. But we are also governed by a third regime: social time. That sounds benign enough, like afternoon tea with a friend. But don’t be fooled. Social time is the villain in this drama, out to turn you against health, happiness, nature, sanity, even your own inner self.”