Whether you're hyper or down, you should never let yourself become a prisoner of your temperament. It's the fastest track to losing business, good friends and supportive colleagues.
IDENTIFY THE WARNING SIGNS. It's all personal. Maybe you have tension in your head or back, are overly irritable or have a three-page, seemingly endless 'to do' list.
PUT IMPORTANT ACTION ON HOLD. Avoid making crucial decisions until you have regained control of yourself.
EVALUATE YOUR BEHAVIOUR. Is it appropriate? Don't transfer your anxieties to other people or projects. Don't let yesterday's disappointment obscure today's golden opportunity.
TAKE CONTROL of your emotional chemistry. Talking yourself up and vigorous exercise can stimulate the endorphins. A walk round the block or 10 minutes of meditation can reduce adrenalin.