TOKYO, Feb 28 — Recently in Tokyo an AI-driven robot leaned over a man lying on his back and gently put a hand on his knee and another on a shoulder and rolled him onto his side — a manoeuvre used to change diapers or prevent bedsores in the elderly.

DAEJEON, South Korea, Dec 23 — South Korean researchers have developed a lightweight wearable robot that can walk up to paraplegic users and lock itself onto them, enabling them to walk, manoeuvre obstacles and climb staircases.