theeconomist:

Ever fall asleep with a light on? A team of researchers examined how nocturnal light affects weight, body fat and glucose intolerance in male mice. They found that persistent exposure to even a little night-time light leads to increases in all three. Expect some very odd diet plans to follow.

I would’ve preferred “Does light make you heavy?” as a lede here

but seriously, this is interesting. I wonder if light also makes you sleep less/poorly