Do your thumbs hurt? If you're sending lots of text messages, you may have the trendiest new malady: "BlackBerry thumb". Most users of this popular wireless device type much faster by using their thumbs. Many people learn to type 40 words per minute. Lots of messages mean lots of repetitive thumb motions and that could mean trouble. The thumb is actually the least dexterous part of the hand and it is really designed as a stabilizer for pinch gripping with a finger, this is why you only have two of them, not eight.

Any repetitive motion can predispose someone to various injuries such as tendinitis, which in this case could be trigger thumb or de Quervain's tenosynovitis or it could even aggravate an underlying arthritis.

What's the treatment for BlackBerry thumb? Lay off the thumb typing. Minimizing the stress and strain on your thumbs by typing on your traditional keyboard and then syncing it over to your BlackBerry.