Zone 2, Keto, Rapamycin & GLP-1s: Are We Gatekeeping Longevity?
We asked Dr Shah whether today’s buzziest interventions are genuine tools for healthy ageing…

Written by: Samantha Nice
Written on: September 14, 2025
Samantha Nice is a seasoned wellness writer with over a decade of experience crafting content for a diverse range of global brands. A passionate advocate for holistic wellbeing, she brings a particular focus to supplements, women’s health, strength training, and running. Samantha is a proud member of the Healf editorial team, where she merges her love for storytelling with industry insights and science-backed evidence.
An avid WHOOP wearer, keen runner (with a sub 1:30 half marathon) hot yoga enthusiast and regular gym goer, Samantha lives and breathes the wellness lifestyle she writes about. With a solid black book of trusted contacts (including some of the industry’s leading experts) she’s committed to creating accessible, well-informed content that empowers and inspires Healf readers.
- 1. Are these tools science or just hype?
- 2. So, are we gatekeeping longevity?
- 3. Zone 2 cardio: secret hack or just steady-state exercise?
- 4. Ketogenic diets: longevity strategy or short-term fix?
- 5. Rapamycin: breakthrough or overhyped?
- 6. GLP-1s: longevity or just quick weight loss?
- 7. Which interventions will stand the test of time?
- 8. Science vs. behavior: the true longevity barrier
- 9. Final thoughts