text: I'm not sure at what age this could start. But with kids of the 80's,90's and today being in the technology age. Using more computers each decade,your hearing more of carpul tunnel more offen but it can be said for those who weren't born in these decades either when using electric typewritters,classic mannual typewritters. \n\nIt's repedative stress injury,that can happen in time to anyone in any age range,background,etc...