Pins and Needles.

[Highlander]

In the Army when you are very often in one position for long periods of time,.. we were told two things,... first of all, and most importantly think about the position you go into in the first place,.. and the second was that if you started to feel pins and needles, either move slowly, or if you cant then wriggle your toes,.. this at least helps to pump blood though the pinched arturies that are causing the blood loss