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BRS-X(Hormones)

BRS-X-Hormones-1-5 - Testosterone Signalling Stability​

1. Mission & Overview​

Mission​

Maintain androgen receptor signalling so motivation, stamina, and goal-directed effort remain well supported.

Intervention Dominance: Lifestyle-Supported — Lifestyle Levers

The established influence is bounded to the measured endpoint and exposure context.

Overview​

Androgen signalling depends partly on the availability of hormones that activate its receptors. Nutritional and sleep conditions can influence this upstream supply, although hormone concentration is not a direct receptor-activity measurement. Small human studies found lower testosterone during zinc restriction and sleep restriction, with repletion findings confined to marginal zinc deficiency. These results support bounded supply and lifestyle relationships. They do not establish that extra zinc increases motivation or that manipulating testosterone is an appropriate goal for adequately nourished people. Prasad et al. (1996) [3]; Leproult and Van Cauter (2011) [4]

  • Biological Relevance: Serum testosterone fell during restriction and rose during repletion in the small deficient groups. Prasad et al. (1996) [3]
  • Implementation Notes: Use the bounded lifestyle relationship below; its context and limitations travel with the disclosure.

2. Primary Biological Effects​

  • Serum testosterone fell during restriction and rose during repletion in the small deficient groups. Prasad et al. (1996) [3]
  • Daytime testosterone was approximately 10–15% lower after restricted sleep; reported vigour also fell. Leproult and Van Cauter (2011) [4]

3. Levers​

4. Mechanistic Basis​

Summary​

Serum testosterone fell during restriction and rose during repletion in the small deficient groups. Prasad et al. (1996) [3]

Mechanism boundary: Receptor response and motivation were not established. Zinc supply is not an androgen-receptor catalytic cofactor, and sleep restoration efficacy was not tested.

The receptor also contains a zinc-finger DNA-binding domain. Its foundational identity and limitations are recorded in Scientific Principle SP1; this is separate from the hormone-availability studies below.

4.1 Scientific Findings (2)​

Scientific Findings and their source assessments are available in Evidence & Audit.

5. BRS Pathways and Connections​

5.1 BRS Pathways​

  • None listed

5.2 Cross-BRS Mechanism Relationships​

Primary Mechanisms in other Biological Regulatory Systems that directly interact with, constrain or support this mechanism.

5.3 Local BRS Mechanism Relationships​

Related Primary Mechanisms within the same Biological Regulatory System that collectively support the integrated biological function.

Phenome assessment boundary: Existing ratings and their original source records are retained pending outcome reassessment. The new mechanism and lever Findings do not validate or raise those ratings.

7. Phenome Connections​

These mappings are translational relationships, not single-mechanism outcome claims. Phenomes are emergent functional patterns supported by multiple interacting PMs across the BRAIN Framework.

Motivation / Drive — supportsOpen Page →
Cognitive Energy Stability — modulatesOpen Page →
Emotional Regulation — modulatesOpen Page →
Stage 2A/2B dietary-target assessment — 23 October 2026

REVIEWED — NO NEW ADMISSION. Androgen ligand/receptor signalling, with concentration distinguished from receptor operation.

Zinc and sleep relationships already cover the source-supported conditional supply observations. The retrieved zinc study measures serum testosterone, not androgen-receptor stability. No extra zinc requirement or receptor-specific food effect established.

New implementation: 0 dietary-input admissions (0 completed Unset candidates), 0 practices, 0 biochemical participants, 0 unscored Findings. Existing accepted inputs, source assessments, mission, KCs, Phenome relationships and scores are retained.

Source-to-claim boundary: Assessment source. Stop after adjudicating the stated material candidate and tracing supported delivery. Keep uncertain specificity, formulation, anatomical or measurement links explicit; no negative evidence is inferred from incomplete retrieval.

8. References​