If you have been hurting your wrists, stop masturbating so much to internet porn.
But seriously, switch to something else that doesn't involve a mouse, such as TV. Two hours on the computer, one hour on the TV, and the rest into recreation. If you absolutely positively have to have the internet or gaming for long periods of time, buy a mousepad with an elevated wristguard, and invest in an ergonomic mouse, or trackball mouse.
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