体检不应被“神话”，需理性校准期待

Core Viewpoint - Investing in health through regular check-ups is essential for early detection of potential health risks, but it should be understood as a risk screening tool rather than an absolute guarantee against all health issues [1]. Group 1: Screening vs. Diagnosis - The distinction between "screening" and "clinical diagnosis" is clear; screening is a broad risk detection tool aimed at large, asymptomatic populations, while diagnosis involves detailed examination of identified risks [3]. - Screening serves to discover clues and issue warnings, guiding individuals towards further diagnostic processes when necessary [3]. Group 2: Medical Uncertainty - Medical science inherently involves uncertainty, with sensitivity (correctly identifying disease) and specificity (correctly ruling out disease) being critical metrics for evaluating screening technologies [5]. - High sensitivity may lead to false positives, while high specificity may result in false negatives, necessitating a balance between the two for effective public screening programs [5]. Group 3: Dynamic Health Management - Regular check-ups should be viewed as a series of "snapshots" that create a dynamic health monitoring system, rather than a single assessment of health status [8]. - Understanding the limitations of screening technologies allows individuals to better utilize warning signals and take responsibility for their health [9].