What's wrong with this picture? A direct hammer blow to the head like the one that Larry is about to deliver Curly is likely to result in a traumatic, i.e., immediate injury. But what you might not realize is that much softer blows or sustained contact over a long period of time can also cause gradual injury. The Moral: Contact with hard things can cause serious injury, whether traumatic or gradual. The term for this hazard is "contact stress" and if your job involves banging or leaning up against hard objects, […]