Did you know?
* One of the first scientific studies of anger took place in 1899. It identified the importance of a 'cooling off' period and is still used as a model
* Feeling unhappy makes people less clever, cutting IQ scores by up to 25 per cent
* The emotional intelligence movement started in the US in 1995. Within two years, four out of five US companies were promoting EI among their employees
* Teaching children to read body language and interpret tone of voice can help them understand other people's feelings; 90 per cent of an emotional message is non-verbal