Loss of a static upright Physiological Efficient Posture can adversely affect all the systems of the body.
The cardiovascular, digestive, endocrine, energetic, excretory, fascial, immune, integumentary, lymphatic, muscular, nervous, respiratory, reproductive, skeletal and urinary systems have all been shown to improve when an upright Physiological Efficient Posture is restored.
More importantly loss of the Physiological Efficient Posture moves people away from Homœostasis and further into Allostasis.