Talk to the Hand

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You know it as BlackBerry Thumb - that dull pain in your wrists that results from your dependence on handheld tech. But in its more advanced stages, De Quervain's tendonitis can lead to swelling, tenderness, and even difficulty grasping a mug. To avoid a full-blown injury, try this:

1. Connect your laptop to a docking system so you can use an ergonomically correct mouse.

2. Stretch and flex your fingers and thumbs for a couple of minutes, three times a day.

3. For every 50 minutes spent e-mailing or scanning blogs, stop for 10. Ditto for Guitar Hero.

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