# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2012-01-22 14:08:40 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/161087890271641600) RT @vickeegan: No more tweeting for a bit-am off for a brisk walk@TheEconomist: Just why exercise is so good now being understood http:/ ...