Why our nipples get hard when it’s cold outside

Also in today's Reddit digest: Old school espionage and Reddit's "meta" ecosystem.


Kevin Morris


Published Dec 31, 2012   Updated Jun 2, 2021, 4:34 am CDT

Want to read Reddit but don’t have the time? Our daily Reddit Digest highlights the most interesting or important discussions from around the social news site—every morning.

Pic of the day: “After a year subscribed to r/books, I suddenly realised that you might be interested to see where I work…” (r/books)
Hottest subreddit: r/bestof2012 (1 day)

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*First Published: Dec 31, 2012, 12:25 pm CST