After gaining entry-level proficiency in all three internal-strengthening Horizontal Training arts, Chen Jue got into bed and circulated his qi and blood, practicing Macrocosmic and Microcosmic Orbits Circulation to quell the fiery agitation stirred up by his hard-body training.
Whenever he practiced too much of these hard-body arts that strengthened the body and internal organs, Chen Jue felt a pent-up breath in his chest and wanted nothing more than to find somewhere to let it out immediately.
He was just like Li Yuanba, who lamented that heaven had no handle and earth had no ring to grab, and felt uncomfortable all over if he went a day without swinging his eight-hundred-jin War-Drum Urn-Gold Hammers a few times.
This resulted from an excess of vital essence and qi in his body, combined with the [One Qi, Rising Sun Birth] bonus from his perfected Child's-Boy Skill.
Traditional Chinese medicine described a condition called deficiency-induced yang fire, but that was a symptom of yang deficiency caused by staying up late, internal heat, and so on. It required nourishing yin to restore balance, making it somewhat different from Chen Jue's situation.
In Chen Jue's case, his hard-body training had strengthened his internal organs and bone marrow too much, leaving him unable to vent his energy.
The Internal Fist classics had also mentioned this unusual condition: "Training the organs and Marrow-Transformation cause excessive yang fire, liver activity, and stomach qi. One must grind pebbles between the teeth and swallow them into the stomach and intestines to aid digestion and dissipate qi, then regurgitate them once the stomach qi has been worn down."
Several animals in nature had similar stone-eating habits. Crocodiles and extinct dinosaurs, for instance, had eaten stones to grind their teeth and train their stomachs, pacify energy with no outlet, and improve digestion