A cutting-edge microscope has allowed scientists to capture in real time how electroacupuncture directs the movement of immune cells inside living mice, offering a direct window into the biological mechanisms behind the ancient therapy. The high-resolution mesoscale microscope called RUSH3D-HR was used to observe how thousands of immune cells swarmed to sites of induced inflammation in the mouse spleen. When electroacupuncture was applied to a specific acupoint below the knee, the cellular...