If you’ve got a lot of Facebook friends and Twitter followers, beware. It could be hurting your career! Because the more friends you have, the less likely you are to care about your work performance.

That’s the upshot of a study in the journal Cyber-Psychology, Behavior, and Social Networking. The study also found that employees who frequently Tweet and update their status are more likely to think about changing jobs than people who post less frequently. 

Sociologist Dr. Ron Hammond says it’s because we tend to put our best foot forward on Facebook and Twitter. So, when you read other peoples’ posts, you’re more likely to see comments about big raises, cool bosses, and awesome vacations, instead of complaints about long hours, low pay, or a lack of sick days. And reading too many super-positive posts can make you think that everyone but you has an amazing job. So, it’s no surprise that employees with tons of social media friends tend to get bummed out, are less productive, and often start looking for greener pastures. 

What’s the fix here? Remember that 1 in 4 people admit they lie on Facebook and Twitter. So, take everything with a grain of salt.