Cat videos might be a guilty pleasure, but a new study finds they might be having a positive affect on your mood, too. In an online survey of 7,000 people, researchers found that the participants had fewer negative emotions such as anxiety, sadness and annoyance after watching cat videos — even if they were at work or studying while watching them. "Even if they are watching cat videos on YouTube to procrastinate or while they should be working, the emotional pay-off may actually help people take on tough tasks afterward," study author Jessica Gall Myrick, an assistant professor at Indiana University’s Media School. The study was published in the journal Computers in Human Behavior. — Read it at CBS News