The Library
Editorial thinking on performance, longevity, recovery, and the systems that make sustained output possible.
30 Sept 2026
After 35, recovery rarely fails as a single trait. Hormones, sleep architecture, mitochondria and connective tissue change on different clocks — and that mismatch is the real constraint.
28 Sept 2026
VO₂ max measures the ceiling. Kinetics measure how quickly oxygen uptake rises when demand changes — and that delay may say more about daily capacity than the peak number.
23 Sept 2026
GLP-1, GIP, glucagon and amylin form a signalling architecture that governs appetite, glucose and energy balance. Understanding that network is more useful than focusing on any one medicine.
21 Sept 2026
Stable blood sugar is less about restriction than about reducing unnecessary volatility. For executives, glucose swings often explain the afternoon that used to be easy.
16 Sept 2026
Peptide research is shifting from isolated compounds toward a clearer map of how signalling changes with age. The useful question is not which peptide, but which biological conversation is fading.
14 Sept 2026
Body fat percentage is a blunt measure. Fat stored around the organs is metabolically more active and more closely linked to insulin resistance, inflammation and long-term risk.
09 Sept 2026
BPC-157 is widely discussed as a repair peptide. The published evidence is still largely preclinical. This piece looks at what the research actually shows, and what it does not.
07 Sept 2026
Continuous glucose monitoring is no longer only a diabetes tool. For people without diabetes, it can reveal how sleep, meals, stress and training shape glucose variability through the day.
02 Sept 2026
Clinical research is moving from single-receptor incretin medicines toward therapies that engage more than one metabolic pathway. The story is the signalling system, not a single molecule.
01 Sept 2026
Insulin sensitivity describes how clearly tissues hear one of the body's central energy signals. Research suggests it may be as informative about healthy ageing as it is about diabetes risk.
10 Aug 2026
Peptides are naturally occurring signalling molecules that help regulate repair, recovery and cellular communication. Emerging research suggests they may support healthy ageing, metabolic health and tissue regeneration.
03 Aug 2026
Metabolic flexibility is the body's ability to seamlessly switch between fuel sources, allowing it to produce consistent energy, maintain cognitive performance and adapt to physical and mental demands.
17 Jul 2026
Why the Future of Fitness May Be About How Quickly You Adapt, Not How High You Can Go.
01 Jul 2026
Muscle is increasingly viewed as a cornerstone of healthy ageing. It supports metabolic health, resilience and recovery, while helping preserve physical function and independence as we age.
22 Jun 2026
Bryan Johnson found sauna benefits depend less on time and more on heat dose. HSP27 only activated when his core temperature stayed above 39°C for around 15 minutes. The body responds to intensity, not just duration.
16 Jun 2026
The ultimate luxury isn't unlimited energy. It's maintaining the capacity to recover, adapt and perform at a high level for far longer than previous generations.