Further, the study presented data supporting the critical role of magnesium and malic acid in ATP production under hypoxic conditions. It is also recommended to be taken with food and water. Although safe, sensitive people may experience slight gastrointestinal problems. These can usually be eliminated by reducing the dosage. Carl Reich, MD, has pointed out the same breathing pattern takes place in asthma and other diseases involving anxiety and fatigue.
Shallow breathing reduces the oxygen content of the blood.
It retains too much, or too little carbon dioxide. Too much carbon dioxide makes the heart beat faster to deliver what little oxygen there is to the brain. Too little oxygen to the cells of the body, and we use the lactic acid pathway to produce energy just as normal healthy people do after prolonged exercise, Lehninger, Principles of Organic Chemistry. What is not all that clear is how that works and why. Lactic acid build-up is the reason why exercisers experience pain after an extended workout and why some people get stiff necks under stress.