From the Freakonomics radio show, a great example of how the press works:
carpal-tunnel syndrome is, unfortunately, alive and well. Among construction workers and food-processing workers, among chefs and professional musicians. Even among some journalists here and there. But it no longer captures the attention of journalists – and, therefore, you no longer hear about it so much. Journalists, as you probably know, we love to write about ourselves. So if carpal-tunnel syndrome isn't happening so much in the newsroom – well, if a tree falls in the forest, and no one's around to hear it, does it make a sound?