What is Blackberry thumb?

You don't need a Blackberry to get Blackberry thumb. But constant use of your thumb to dial, chat with friends and update your Facebook and Twitter accounts from any mobile phone, ups your chances of getting it.
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Thanks to the way mobiles are designed, especially small ones, it might be easiest to use your thumb to press the keys. Over time, you will feel a pain in the thumb, fingers and wrist. In extreme cases, you might even be unable to use your hand properly.

This condition is termed 'Blackberry Thumb'. The reason is that the thumb does not have the dexterity fingers have. Experts are undecided on whether or not the Blackberry thumb qualifies as a disease, but in extreme cases of the condition, surgery is a possibility.

Thumb ruleu00a0use all fingers to text, avoid typing long messages and or cut down on mobile phone usage.