Today's car seats, particularly buckets, position your knees higher than your hips. This throws all your upper body weight back onto your gluteus maximus and piriformis muscles through which--and this is the important part--the Sciatic nerve runs. Sit on that nerve often enough and long enough, and add a fat wallet in your back pocket, and you will probably end up with shooting pains down one or both legs.

Human beings were designed to sit on their pelvic bones, or ischium, those hard bones you sometimes feel when you first sit down on a hard chair. Sitting on those bones automatically gives us a natural arch in the small of our backs. When we sit this way, the sciatic nerve, sacroilliac joints, lumbar vertebrae and hips are unencumbered and unstressed.

In order to take the pressure off your sciatic nerve, you must drive with your thighs parallel to the floor of the car, your hips at the same level as your knees. If you can adjust your seat to be flat, great. If not, fold a towel, use a small cushion, or buy a foam wedge to place in the dip of the seat.

Sitting erect in a bucket seat, even with a wedge cushion, is not easy. You'll need lumbar or low back support, too, to keep from leaning back and causing neck and shoulder pain. Once you've positioned yourself as if you were on horseback, slip a small rounded cushion or rolled up towel behind the small of your back. You don't need to lean back. Your lower body will support your upper back and head. Now relax your shoulders and place your hands on the wheel as if you were holding the reins. You may need to bring your seat closer to the steering wheel.

At first, this new way of driving will feel awkward at best and uncomfortable at worst. Persist. Soon you will find that chronic low back pain, stiff neck and shoulder pain will get better and better.

Copyright (c) 2003 Pamela Adams D.C. Holistic health coach and ergonomics expert Dr. Pamela Adams is author of "Dr. Adams' Painless Guides; How to do Anything and Everything Without Hurting Yourself." Get the books and your free biweekly Self Health Newsletter at http://www.painlessguides.com