1. Executive Summary (Confidence: High)

The Swiss Center for Health & Longevity, located in Zollikon/Zürich, serves as an elite "gateway to the pinnacle of Swiss healthcare" for individuals seeking to optimize their biological health.^[22] The center's methodology, the "Longevity Center Method," is rooted in rigorous medical science and extensive collaboration with a world-class scientific advisory board.^[18] Its primary diagnostic centerpiece is the "Blood Tuning" system (following the Strunz and Sahmel methods), which provides a high-resolution view of a patient’s molecular health to identify curative and preventive measures.^[22] Offering three tiers of comprehensive medical check-ups (Basic, Executive, Gold) and a suite of "Longevity Add-ons" like biological age assessment and DNA diagnostics, the center caters to a high-net-worth demographic focused on vitality and resilience.^[18]