Training theory, supplements, and peptides
Every claim here traces to a primary source: a peer-reviewed trial, a regulatory filing, an official standard. Where the evidence is thin or the substance is unregulated, we say so rather than filling the gap with confidence.
- Training theory
The interference effect: what concurrent training research actually shows
Lifting and endurance work compete for the same adaptive signaling. The effect is real, well-studied, and much smaller than most hybrid athletes assume.
- Supplements
Creatine monohydrate: dosing, timing, and what the evidence actually supports
The most-studied supplement in sports science, and the one hybrid athletes most often dose wrong. What the trials actually measured.
- Peptides
BPC-157 and healing peptides: what the evidence and the law actually say
Popular in hybrid-athlete recovery culture, unapproved for human use in the US and most jurisdictions. A conservative look at what is and is not established.
Looking for a quick definition rather than a full breakdown? The glossary covers the terms; this pillar covers the underlying research.