Yes, Hecate, yes! That is a well known Shatner technique, and we have a 4 credit course on it at the WSSBA. A mere 2 semesters of hard work and dedication should prove sufficient to endow a serious student (or a congenital idiot...) with mastery of this acting method.

You see, a long slow intake of breath revitalizes the brain cells with oxygen...providing increased alertness and vitality for dealing with the next crisis that arises. This is very useful when dealing with dangerous alien lifeforms or scantily clad space nymphets.

- LH