Personally I consider that Quackwatch is written by members of the "Worldwide Union of Allopathic Doctors and Drug Producers" for their own personal financial gain. They are willing to subsidize this website as it brings them money. No other way of putting it. They could give a sh*t about your health.
Interesting thing to consider re: alkaline/acidity...
One article by Nenah Sylver PhD. quoting Ken Uzzell, that I read about 'Inclined Bed Therapy is that the inventer (or should I say person, Andrew K. Fletcher [UK] who figured it out and did some experiments on it with his family and then in a hospital) determined that when people started using IBT their first thing in the morning urine's PH is highly acidic compared to sleeping horizontal. These same people measured slightly taller.
These person's heart rates decreased by around 10 BPM during inclined sleep and the respiration decreased by 4 to 5 breaths per minute, yet circulation and metabolism in all cases was higher in the "inclined" sleep than the horizontal sleep [position]
Unfortunately I cannot reproduce all of the article on it, but there are many websites on Inclined Bed Therapy you can Google.
Several People have shown that it is possible to reverse damage to the Central and Peripheral Nervous System including complete spinal cord injuries and nerve damage caused by progressive MS including damage to the optic nerve. Varicose veins. leg ulcers,edema (swelling), arthritic conditions, lethargy, muscle wastage (atrophy) and osteoporosis, have all responded well to this therapy.
Other conditions were lessened or eliminated entirely: acid reflux, arthritis, back pain, edema, MS, metabolic disorders, Parkinson's, and respiratory distress that included sleep apnea and snoring. Some of Uzzell's clients are pro athletes. When they began using IBT, he recalls, their coaches were "staggered" by their performance increase. "I was told not to spread the word too aggressively, since after all, people like their competitive advantage."
Some respond well to this therapy in four weeks while others may take four months or more. An improved resistance to infection has also been observed.
The article goes on and explains that the increased circulation even though the heart is working less hard, nutrient conveyance and waste removal are enhanced. also reduced compression on the spine allows the lymph tissue to move more freely and drain more easily. Also the fascia or membranes enveloping the muscles, unwind.