Stress
News reporters have stressful jobs. The news happens when it happens, and you'll be expected to drop whatever you're doing—eating dinner, getting a good night's sleep, playing World of Warcraft—to go after a story.
It isn't like you'll have a couple of days to come up with a well-researched, finely-crafted finished product, either: If a news item is hot, then the onus will be on you to report it first, before anyone else can. Even if there aren't any plane crashes or apartment fires for you to get the scoop on, your life will revolve around deadlines. You'll be expected to submit fresh content for your newspaper or radio or TV station often and on time.
Then, of course, there's the stress of working in an industry where your job is constantly on the chopping block thanks to shrinking budgets, not to mention, if you work in television, the stress of looking hawt and put-together for your viewing audience.