Physical Exhaustion

I work at Amazon. The issue, in my opinion, is not so much an unsafe environment (as far as warehouses go), but rather physically overworked employees. 

Everyone knows that once you reach a point of physical exhaustion (which is easy to do doing a repetitive task burning a few specific muscles) you are more likely to injure yourself. You lose focus and you are less precise due to exhausted muscles. You physically fall apart at this job and that's why people are more likely to get injured there. 

If Amazon relaxed their emphasis on rates and gave slightly longer breaks (I only get 1 hour out of a 10 hour day total), that'd be huge. People would be able to relax more physically and would thus hurt themselves less. 

They could also pay us more, but that's a whole other issue...