Want an inexpensive way to promote stress management and help your clients, patients, employees or customers boost their immune system? Get a stress card, it’s fun and informative, and perfect for mailing to employees who are working remotely. Printed on thick paper “card stock” it is the size of a business card. Our stress cards are beautifully designed and fits neatly in your wallet or purse. The heat sensitive material on the front of the card changes color to tell you your level of stress.