Varicose veins cannot be caused by defective valves in Alun's and many more cases at least. Because their valves would still be as defective if this were the case and they would not return to normal veins over time. The only logical conclusion is that the pressure inside the vein that was causing them to dilate and twist has been addressed by tilting the bed. This is further backed up by the migration of oedema from the skin and surrounding tissue back into the venous return and excreted in the urine via renal filtration as should be the case in a person unaffected by oedema.

To get a clear picture of my reasoning for tilting a bed, look at the video experiments on Youtube, showing water rising up a 6 mil bore nylon tube to 24 metres, also a scaled down experiment shows this effect clearer. This vertical circulation is driven by introducing a tiny amount of denser minerals that are dissolved in 10 mils of salt solution (in the larger experiment) Less solute will also cause the same circulation!

Here we have a downward flow which contains the salt solution and represents the phloem in the tree but also represents the arterial flow in the human body, the salts added to the arteries at an elevated pint, not by introducing them as in the experiment but by the evaporation from exhaling and evaporative loss from the skin and eyes. It is impossible for evaporation to take place from a fluid that contains solutes like the blood, cerebrospinal fluid, tissue fluid and the fluid that flows onto the surface of the lungs and respiratory tract. Tears from the eyes and sweat from the skin illustrate this concentrating effect, so do nasal and oral mucous / secretions.

In the case of the lungs, salts and sugars are inevitably concentrated by evaporation and the resulting density changes will cause the fluids to migrate back through the lining of the lungs and into the arterial circulation, forcing more dilute fluids to flow onto the surface ready fro the next exhale.

This would release pulses of salts into the arteries and providing we are aligned to the direction of gravity in relation to the predominantly vertically placed veins and arteries, these salts will assist the circulation introducing a positive pulsatile pressure flow in the artery and at the same time cause a dragging effect on all of the molecules in the blood providing a boost for the return flow in the veins. It is this boost venous return flow boost that provides us with an understanding of Starlings law of the heart.

Increased venous return was demonstrated by elevating a vessel containing blood linked to the heart to show how an increase in venous return to the heart produces a greater output from the heart. The body however does not have a vessel connected to it with a length of tubing to increase the venous return. What it does have however is an ability to release solutes down the artery to induce a slight increase in arterial pressure and a compensating decrease in venous pressure that pulls more blood back to the heart caused by the dragging effect the solutes have in the descending arterial flow.

Fir this to be correct, density changes in urine output would need to be related to inclined bed posture, showing a moderate increase in urine density.

But the opposite effect should take place if we sleep horizontally showing a moderate comparative decrease in the density of the solutes found in the urine. A simple hydrometer test provided the evidence for this. But the most important reading was when my wife and I slept head down for several days. Here the urine output went down to a near water density. So the body was either storing the solutes within the blood, muscle, tissue and bones or the uptake from the gut had been interrupted.

I think it was a combination of both, as my wife and I both ended up with diarrhoea, indicative of more fluids passing through the bowls.

Further research revealed that head down sleeping was capable of causing weight loss and was I believe used with the late actor Marlon Brando. However, as mentioned earlier in this thread, head down sleeping is going to cause a lot more problems than weight loss over time. NASA have been proving this for many years and still are repeating these same postural experiments offering large sums of money to youngsters to sleep head down to see what happens to their physiology and with good reason, as head down tilt produces a rapid ageing / degenerative process on normally healthy people.

So to sum up, tilting the bed correctly (IBT) method alters the pressures inside the predominantly vertical vessels by allowing gravity to push and pull on dissolved solutes flowing in the blood, lymph, cerebrospinal fluid and tissue fluids.

Andrew K Fletcher