It's all very well posing for hours on end for the perfect picture, or editing your favourite photo on your computer, but that's not who you really are. (uk.match.com)
As the result of spending hours on end in a sitting position, the valves inside the veins can get tired. (compressioncarl.com)
It'll feel strange playing a fighting game for hours on end in order to unlock a character, which is a sad statement of the current state of the video game industry. (playstationlifestyle.net)