HealthPop video: Long hours are depressing, scientists zap rats

People who work 11-plus hours a day are two-and-a-half times more likely to become depressed than those clock out after seven or eight; Also, ultrasounds could be the key to birth control for men; And, a special "What the Health" segment on babies.

On this week's HealthPop video:

  • Does work get you down? You're not alone. But a new study says people who work more than 11 hours per day are much more likely to be depressed. Wait until you hear the reasons why...you might be even more depressed.
  • Why are scientists at the University of North Carolina zapping rat sperm with ultrasound?
  • And introducing a new HealthPop segment: "What the Health?"

See for yourself, from CBSNews.com's Nick Dietz, in the latest HealthPop video.