Being skeptical, bad-tempered and pessimistic helps you to earn more, live longer and enjoy a healthier marriage.

Suppressed anger also leads to health problems.  A study in the American Journal of Cardiology found that patients with CAD who suppress their anger were at increased risk of adverse cardiac events.

An article in the Journal of Experimental Social Psychology  found that skeptical people tend to process things better, are less gullible and are more innovative.

The truth is, pondering the worst has some clear advantages. Cranks may be superior negotiators, more discerning decision-makers and cut their risk of having a heart attack. Cynics can expect more stable marriages, higher earnings 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 and selfish. Positivity is also known to encourage binge drinking, overeating and unsafe sex.

Source: BBC – Future – Why it pays to be grumpy and bad-tempered