Peristalsis is the coordinated, wave-like contraction of smooth muscle that moves contents through the digestive tract — from esophagus to intestines. It operates largely automatically, regulated by the enteric nervous system and vagal tone.
Stress and Peristalsis
Under sympathetic activation (stress), peristalsis slows or stops — the body prioritizes survival over digestion. Chronic stress leads to irregular, sluggish peristalsis.
In ONDA Life
"Restoration of rhythmic peristalsis" is a biological marker of Part 1 completion. When the parasympathetic system is activated and cortisol drops, the gut can return to its natural rhythmic movement — a sign that the body perceives safety.
Scientific Basis
Built on: Polyvagal Theory (Porges); HRV & vagal tone (Thayer & Lane).