Immune Resilience

Immune function is the single most important variable in long-term health — it determines who catches everything going round, who takes three weeks to recover from a virus, and who quietly harbours chronic low-grade dysfunction. Modern immune support has moved well beyond vitamin C and zinc, and this chapter maps what genuinely works.

6 takeaways from this chapter.

• The immune system's main arms — innate, adaptive, mucosal — and how each responds to lifestyle
• Nutritional foundations with the strongest evidence (vitamin D, zinc, selenium, protein adequacy)
• Why chronic stress is immunosuppressive and what to do about it practically
• The role of the gut microbiome in immune calibration
• Sleep as the single most undervalued immune input
• Where regenerative and cellular peptides fit in recovery and resilience

Anyone who catches every cold going round. People recovering from a serious illness who want to rebuild immune function properly. Anyone interested in resilience as a long-game health strategy rather than a symptom-chasing one.

Part of The Body Blueprint — 41 chapters across every system that matters. £6 per chapter, or £29 for the full bundle (save £217).