BBC NEWS | Health | Feeling grumpy 'is good for you'

BBC NEWS | Health | Feeling grumpy 'is good for you': "In a bad mood? Don't worry - according to research, it's good for you.

An Australian psychology expert who has been studying emotions has found being grumpy makes us think more clearly.

In contrast to those annoying happy types, miserable people are better at decision-making and less gullible, his experiments showed.

While cheerfulness fosters creativity, gloominess breeds attentiveness and careful thinking, Professor Joe Forgas told Australian Science Magazine."