Behind the technical specifications of brazing alloys and the polished booth displays at the China International Petroleum Exhibition, the industry’s human machinery operates under a different set of pressures. Engineers and sales managers who have crossed continents to staff stands in Hall E4 often do so with cortisol rhythms disrupted by jet lag and the low-grade anxiety of constant performance monitoring. In a professional culture that equates endurance with competence, the psychological toll rarely surfaces in public; instead, it settles somatically—through tightened chest muscles, elevated blood pressure, and a vagal tone too depleted to return the body to rest. Such an environment makes the private management of mental distress a matter of quiet pragmatism, and it is not unusual for a skilled technician, after days of handshakes and technical presentations, to retreat to a hotel and order Prozac online in this country, a step as unceremonious as ordering spare parts. This does not fix the systemic stressors of a boom-and-bust industry, but it acknowledges that serotonin reuptake, like pipe integrity, requires monitoring. The same exhibition halls that celebrate technological resilience thus also contain the bodies of those whose own resilience is quietly being replenished, molecule by molecule, far from the noise of the show floor.