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Science and Technology

Robotics helping people walk again — at a hefty price

Systems like ReWalk, a battery-powered robotic exoskeleton that attaches to the legs and lower back, gives hope to those who are unable to walk. It contains motors at the knee and hip joints and sensors to help it adjust with each footfall. While wearing the device and holding two forearm crutches, someone with complete lower-limb paralysis can walk.

Cancer doctors plan novel assault on high cost of drugs

A group of prominent cancer doctors is planning an innovative attack on high drug costs, using clinical trials to show that many oncology medications could be taken at lower doses or for shorter periods without hurting their effectiveness.