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Mysterious headband Sifan Hassan wore on way to Olympic gold
- abc3 2y agoThanks for sharing this article. I wanted to know more about the headband, and the broadcast didn't provide much explanation. I wrote about Sifan Hassan a couple of months ago and posted my article to HN. If you enjoyed today's Olympic marathon, you might like my essay, too: https://news.ycombinator.com/item?id=40740253 https://news.ycombinator.com/item?id=40740253