How to balance TRF with a busy schedule, CGMs, biomarkers for longevity?

[William20]

I'm a 42-year-old data scientist, and after watching several close family members face significant health declines in their 60s, I've become deeply interested in proactive, evidence-based longevity strategies beyond just diet and exercise. I've read the basics on NAD+ boosters, metformin for non-diabetics, and the importance of VO2 max, but the information is overwhelming and often contradictory. For those who have seriously researched this field, what are the most promising interventions or biomarkers to discuss with a functional medicine doctor? I'm particularly curious about the practicalities of incorporating time-restricted eating with a demanding job, the real-world data on continuous glucose monitors for non-diabetics, and whether investing in regular blood tests for inflammation markers like CRP or homocysteine has been worth it in your personal health optimization journey.