When you're stressed, your fingers become cooler. That's because your blood is rushing to your muscles and heart to prepare you for 'fight or flight'. And as you relax again, your hands become warmer and blood flows more freely. The stress square on the mood card registers the changes in temperature, and thus tells you how stressed you are.

How accurate are they? According to medical researchers, the range between 'tense' and 'relaxed' is 82°F and 92°F. StressDots/Cards have proved to be highly accurate within this range - as accurate as a medical thermometer, in fact.

How to use the cards Press your finger to the StressDot. It will change colour depending on how stressed or relaxed you are. Turn the card over for the four-colour key.

This product has great novelty and pass-on rates making it a very useful tool for anyone who deals in good health promotion – whether therapists, medical practitioners or health clubs and spas. Very handy at health promotion events or to publicise your own stress-related business. Good pass-on rates.

Front side – stress square and colour key to interpret colour changes on the stress square.

Reverse side – Stress reduction tips .

Business card is 85mm x 55mm and made from credit card grade plastic for superior quality and long life. Available in any number. Discounts on bulk orders.

Price is for a single card.

Visit www.stressmoodcards.com to explore branded options.