Our bodies are designed like a reciprocating engine!
In the human body, some organs are bilaterally symmetrical, while others are just one. Why is our body designed this way?
* Symmetrical body parts: arms, legs, muscles, vascular system, nervous system, lymphatic system, brain, ears, eyes, nose, lungs, and kidneys.
* Single organs: heart, digestive system, liver, reproductive system
Our bodies evolved to be optimized for running, and modern humans still have them. When we run, when our left foot is on the ground, the organs on the left side of the body are in a strong state of rigidity (tension) and the right side is in a strong state of relaxation. When the right foot lands, the right side of the body is in a state of strong tension and the left side is in a state of strong relaxation. This cycle continues while running. The same mechanism works when we walk, but the degree of tension and relaxation is weaker.
It's like a reciprocating engine, which performs a repetitive cycle of intake, compression, detonation, and exhaust.
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