61Avoid interference with pacemakersMaintain a minimum of 15 cm (6 inches) betweenmobile phones and pacemakers to avoid potentialinterference, as recommended by manufacturers andthe independent research group, Wireless TechnologyResearch. If you have any reason to suspect that yourphone is interfering with a pacemaker or other medicaldevice, turn off the phone immediately and contact themanufacturer of the pacemaker or medical device forguidance.Turn off the phone in potentially explosiveenvironmentsDo not use your phone at refuelling points (servicestations) or near fuels or chemicals. Turn off yourphone whenever directed by warning signs orinstructions. Your phone could cause explosionsor fire in and around fuel or chemical storage andtransfer areas or blasting areas. Do not store or carryflammable liquids, gases, or explosive materials inthe same compartment as the phone, its parts, oraccessories.Reduce the risk of repetitive motion injuriesWhile using your phone, hold the phone with a relaxedgrip, press the keys lightly, use special features thatreduce the number of keys you have to press (suchas templates and predictive text), and take frequentbreaks.