Library.

“Enzymes in the human body have changed their chemical structures in order to survive in an OH⁻-rich internal environment.”

The claim is not supported by biochemistry or human physiology. The human body is tightly buffered and is not generally an OH⁻-rich environment, and excess alkalinity tends to impair or denature enzymes rather than help them "survive" by changing structure. Enzyme adaptation to different pH conditions occurs through evolution across generations, not by individual enzymes chemically redesigning themselves inside the body.

“Atrial fibrillation reduces glymphatic flow in the brain, impairing the clearance of waste metabolites.”

Emerging evidence suggests a link between atrial fibrillation and reduced glymphatic activity, but the claim presents this as an established causal mechanism when it remains a contested hypothesis. The strongest experimental data comes from cardiac arrest models in mice—not AF—and the only dedicated clinical study involved just 13 patients. Most peer-reviewed AF literature attributes cognitive decline to hypoperfusion, microembolism, and inflammation rather than glymphatic impairment specifically, and the underlying premise that vascular pulsation drives glymphatic flow is itself disputed.

“Walking barefoot on grass enables the human body to absorb electrons from the Earth's surface.”

The core claim is physically plausible: the Earth carries a negative surface charge, and conductive barefoot contact can equalize electrical potential, transferring electrons to the body. Multiple peer-reviewed papers report measurable changes in body voltage during grounding. However, the supporting research comes from a narrow group of authors, uses small samples, and frequently hedges with speculative language. The magnitude and physiological significance of this electron transfer remain scientifically contested, and no large-scale independent replication has confirmed the mechanism's health relevance.

“Detox diets remove measurable toxins from the human body beyond what the liver and kidneys naturally eliminate.”

This claim is not supported by the weight of scientific evidence. Major health institutions — including the NCCIH, MD Anderson, UChicago Medicine, and Harvard Health — consistently conclude there is no compelling, high-quality evidence that detox diets remove measurable toxins beyond what the liver and kidneys naturally eliminate. The one supportive study measured trace elements in hair (an indirect, contamination-prone proxy) and itself acknowledged the broader lack of evidence. The human body's own organs already perform continuous detoxification, and no well-designed clinical trial has shown detox diets provide additional toxin removal.

“Approximately half of the cells in the human body are non-human cells, primarily composed of microorganisms such as bacteria.”

The claim is largely accurate. The best peer-reviewed research (Sender et al., 2016) estimates ~38 trillion bacterial cells versus ~30 trillion human cells, making bacteria roughly 56% of all cells — reasonably described as "approximately half." However, this is a point estimate for a 70 kg adult male with significant uncertainty (~25%) and population variation. The claim also omits that by mass, bacteria account for only ~0.2 kg, so "approximately half" applies to cell count, not biological dominance.