For example, Lipitor tops all statins for side effects, with 76, 535 adverse-events reported from 2004 to 2011 (most often muscle pain, pain in extremities and muscle weakness), compared with 34, 938 for rival Crestor, according to AdverseEvents.com.

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Bernardo Ramazzini, a 17th century occupational physician actually recognized the health hazards associated with prolonged sitting, especially among writers who developed fatigue in their upper extremities.

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In fact, most of our extremities and senses have cropped up in digital form one way or another.

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As for the hardware itself, the mic arrangement means things can be neatly contained in one spherical shield, rather than two extremities on some stereo recorders.

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My long bones in my arms and legs felt like someone was ramming a long steel rod into them, my joints all creaked and popped in and out and ached like the worst arthritis ever. my skin was on fire and my extremities, especially my hands and feet, where it seemed to concentrate.

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Dr. Peter Fagenholz, a trauma surgeon at Massachusetts General Hospital, said in a televised news conference that many of the 29 people brought there for treatment had suffered injuries to their lower extremities, some requiring amputation.

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Part of its charm revolves around the rubberized tracks on its feet as well as on the extremities of each of its four limbs -- not surprisingly, these are engineered to help it maneuver in some pretty sticky situations.

ENGADGET: Carnegie Mellon's Chimp robot is reporting for duty, sir