Cynics can expect more stable marriages, and longer lives – though, of course, they'll anticipate the opposite. Good moods on the other hand come with substantial risks – sapping your drive, dimming attention to detail and making you simultaneously gullible .

Why do cranky people live longer?

According to a recent study, grumpy people are more likely to earn more money, live longer and even enjoy a healthier marriage. "Negative moods indicate we're in a new and challenging situation and call for a more attentive, detailed and observant thinking style." the study said.

Is it good to be grumpy?

Research has found that grumpy people are more likely to not only live a longer life and earn more money, but have a healthier marriage too.