Why do we ignore injury prevention

The problem with many strength training exercises is that they don't emphasize injury prevention. Let's face it, everyone would prefer to prevent injuries rather than having to treat them. The pain and dysfunction, along with the cost of treatment, should be enough to convince most new trainees to start off on the right foot. Unfortunately, prevention does not seem to be part of our human nature. We tend to let things fester until they grow into bigger problems that cannot be ignored.