While many people fear that mobile phone will drive them to an early grave by adding to the stresses of daily life, some see a more direct threat to their health. To cater for these fears, Japanese textile maker Kaneba Ltd and clothing retailer Haruyama Trading Co plan to launch a range of suits under the brand name ‘Heart Guard.’ According to the Herald Tribune, they have a pocket made of a special fabric which blocks 97% of electromagnetic radiation. The companies reckon sales will rise from 30,000 next year to 100,000 by 2000. Perhaps the companies could add hats made of the material to their range. Any observer of compulsive mobile phone users can see the real worry is not the effect of radiation on their hearts but on their brains.