Editing Nitrogen narcosis (section)

== Prognosis and epidemiology ==
Narcosis is potentially one of the most dangerous conditions to affect the scuba diver below about {{convert|30|m|ft|sigfig=1|abbr=on}}. Except for occasional amnesia of events at depth, the effects of narcosis are entirely removed on ascent and therefore pose no problem in themselves, even for repeated, chronic or acute exposure.{{sfnp|Bennett|Rostain|2003|p=301}}{{r |Hamilton1985}} Nevertheless, the severity of narcosis is unpredictable and it can be fatal while diving, as the result of inappropriate behavior in a dangerous environment.{{r |Hamilton1985}}

Tests have shown that all divers are affected by nitrogen narcosis, though some experience lesser effects than others. Even though it is possible that some divers can manage better than others because of learning to cope with the [[Subjectivity|subjective]] impairment, the underlying behavioral effects remain.{{r |Hamilton1995 |Fowler1985 |Rogers1989}} These effects are particularly dangerous because a diver may feel they are not experiencing narcosis, yet still be affected by it.{{sfnp|Bennett|Rostain|2003|p=301}}