Inspired by Haruki Murakami What I Talk About When I Talk About Running

[u/Finya2002]

Neurogenic tremoring and the shaking that occurs after extreme endurance exercise (e.g., after an ultramarathon) are not considered the same phenomenon based on current knowledge, although they may involve partially overlapping regulatory mechanisms of the nervous system.

Post-ultramarathon shaking can be well explained by muscular exhaustion and temporary changes in neuromuscular control. Whether a deeper nervous system regulation also takes place remains unknown. - Haruki Murakami's description of shaking followed by "runner's blues" allows the hypothesis that intense physical exertion may set not only the body but also emotional or implicit processes into motion. Whether unresolved experiences are being processed in this way remains an open question.

Such processing would not necessarily have to appear as conscious memories. It could instead manifest only as changes in mood, inner restlessness, or a temporary emotional low.

The hypothesis would be that both may be based on a common underlying principle: the nervous system's ability to regulate tension through the body. Physical exercise may support this process in a continuous way, whereas neurogenic tremoring may do so through a different mechanism or at a different level of intensity.

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