The problem
Manufacturing environments are physically demanding. Noise, vibration, repetitive motion, chemical exposure, heat, dust — cumulative damage workers don’t notice until it’s done.
OSHA sets minimums. Nobody monitors in real time. A noise survey happens once every few years. Meanwhile the machine’s bearings get more attention than the operator’s hearing.
The same shop that instruments a CNC with seven sensors monitoring every millisecond has zero sensors monitoring the human standing next to it.