PRI physical therapy is physical therapy built on the methods of the Postural Restoration Institute (PRI), an education and credentialing organization founded by physical therapist Ron Hruska and established in 2000 [1]. It treats common postural problems as predictable left-right patterns run by the nervous system, and it uses breathing-led positional exercises, plus manual techniques…
You are more water than structure You already know you are mostly water. Here is the part the anatomy books got wrong for a hundred years. A large share of that water does not live inside your cells. It lives in the spaces between them, in a connected fluid network that runs through every tissue…
The head that tilts and nobody knows why She has been tilting her head five degrees to the right since high school. She did not notice it for years. Then she saw a photograph from her wedding and the tilt was so obvious she could not unsee it. How One Asymmetric Signal Bends the Whole…
The ones who do not respond Across credible somatic, interoceptive, and pain-reprocessing programs, the same pattern keeps appearing. Some participants in a well-designed program do not respond. Same protocol. Same delivery. Same instructor. One body changes. Another does not. Effort vs. Outcome The polite explanation is that the practice was not the right fit. The…
The eye is a postural organ Most people understand vision as the sense that lets them see. The eye is doing two things at once, and only one of them is for seeing. Anatomical Compensation The other thing the eye is doing is feeding the postural system the single largest stream of spatial information about…
The question almost nobody asks first Most people walk into bodywork with the same question. What should I do. What is the practice, the protocol, the morning routine, the cue, the breath pattern. Safety: signals to the nervous system The question that comes before that is the one almost no one asks. What needs to…
Update, October 2026: Both papers have been revised since this post. The current versions are NGH 3.0 and GPF 2.5, and each now has eleven testable predictions. Read them free on Zenodo: NGH and GPF. Two papers, one framework In 2026 I published two research papers, now open-access preprints on Zenodo. This post is about…
You have heard these a thousand times Stand up tall. Pull your shoulders back. Brace your core. The Proprioceptive Loop From personal trainers, physical therapists, your mother, the internet, every posture article ever written. These three cues are so universal they feel like natural law. Like gravity. Like something that must be true because everyone…
The opening test Try it right now. The shape the brain keeps generating Run your fingers along the bottom of your foot. Or up the side of your ribs. Or across the back of your neck. Nothing. Now imagine someone else doing it. The same fingers. The same spot. The same pressure. You would flinch.…
The gamma efferent system is a small set of motor neurons (gamma motor neurons) that runs from the brainstem and spinal cord to the muscle spindles, the stretch sensors inside every muscle. It sets how sensitive those sensors are, and with them the resting tension your muscles hold when you are doing nothing. Think of…
