Suppressing the environment is dangerous because features of the environment that normally should be controlling action are ignored. “The effort is a warning signal: Take care; you are not attending to your actions!” Because it is effortful, we use suppression conservatively. Such an account makes sense of certain behaviors. Glenberg observes that “when working on a difficult intellectual problem (which should require suppression of the environment), we reduce the rate at which we are walking to avoid injury.”12
