hey paul,

I haven't read the rest of the messages yet, but your answer sounds damn damn damn gooddddd !

perhps it's just the air pressure in the pad.

sometimes I don't get this circulation problem & I couldn't explain what makes the different. The air pressure difference support your theory.

thx alot.

Erez

: Last year I was doing neuroscience research for an Anatomy & Physiology
: professor and I asked her the same question. She said it wasn't due to
: lack of blood flow to the feet, but rather a lack of blood flow to the
: nerves (sciatic nerves) that terminate in the feet. She said it was due to
: my body weight not being evenly suported over the whole of my butt,
: instead, it was concentrated on two small areas, one on each cheek.
: Unfortunaly, the sciatic nerves are beneath these areas, and so, have too
: much pressure applied to them, and your feet go numb as a result.

: It is the seat. Perhaps you can adjust the position of the seat slightly, so
: that it supports the backs of your thighs a little more? I found that this
: relieved the problem for me, though I'm using a different seat than you.

: Not sure that you can, maybe someone else has found a good seat and can
: recommend one.

: Hope this helps.

: Paul.