The fate of mankind who started bipedalism against the gravity of the earth
The muscles (antigravity muscles: spinal column standing muscles) that maintain their posture at all times are strained and fatigued.
Poor posture increases strain on muscle groups and increases muscle fatigue.
If the blood is muddy (OKETU), the supply of oxygen is poor and lactic acid (fatigue substance) is produced, resulting in poor metabolism and stiffness.
(From ” Blood Circulation Health Method”written by Koki Osugi)