circadian rhythm
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Seeing Too Much Light at Night May Raise Your Stroke Risk
Too much light at night may be bad for our brains, research out this week suggests. In a population of city residents in China, researchers found a link between increased exposure to artificial outdoor light at night and a greater risk of stroke. Unsurprisingly, they also found that more exposure to air pollution was linked…
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How Do Animals Perceive Time?
I’m writing this on a Tuesday, at 2:26 p.m. Minutes ago, it was 9 a.m., or so it feels; back then, I was enjoying the delusion, refreshed each morning, that I’d accomplish what I needed to do today. I still might — there are hours left in the workday — but I’m wiser than I…
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Why Sunflowers Turn To Face The Sun
Sunflowers may look like the sun if you squint your eyes a bit, but they also do this weird thing where they turn to face the sun, hence the name. But how and why these plants move over the course of a day has stumped scientists for over a century.