HGH

Overview

Mechanisms

Evidence

Anecdotes

  • [anecdote] Framed as a resiliency/durability hormone that declines with age; Koniver prefers GH-releasing peptides over exogenous GH to avoid manipulating the hormone beyond natural levels. — Koniver 00:47–00:48

  • [anecdote] Pituitary GH declines ~15%/decade after 30; exogenous GH triggers negative feedback suppressing endogenous production (the rationale for using secretagogues). — Huberman 00:41–00:45

  • [anecdote] Somatopause: GH production drops sharply in the 30s. GH is thymo-regenerative (Fahy TRIIM: GH + metformin + DHEA regrew the thymus). Longevity picture is mixed — GH-deficient models live longer (antagonistic pleiotropy). — Bakri 02:06–02:08

  • [anecdote-bb] In enhanced-bodybuilding circles GH is rated just below testosterone (‘triforce’ = test + GH + insulin); SubQ absorption ~4 h, single nightly dose standard. (Supraphysiologic bodybuilding dosing from the source intentionally omitted — see its safety banner.)Anabolic Roundtable ~00:06–00:15

  • [anecdote-bb] Endogenous GH falls ~85% from puberty to age 55 (mostly nighttime pulses), so secretagogues yield little in older users; creator reports ~2.4 IU exogenous GH gave far higher serum GH/IGF-1 than any secretagogue protocol. — Vigorous Steve

Physician protocols

Practical notes

  • [warning] Risks: carpal tunnel, cartilage/bone & facial changes, distended gut, skin-texture changes, and indiscriminate tumor/cancer growth. — Huberman 01:02–01:04

  • [warning] Reduces insulin sensitivity (A1C↑); the cancer concern is promotion of existing tumors (a growth factor), not carcinogenesis — possibly offset by improved thymic immune surveillance (open debate). — Bakri 02:07–02:13

  • [educational] Direct GH replacement is recommended only for pathologic deficiency, not aging — improves body comp but inconsistent functional gains, higher insulin-resistance risk, unknown lifespan effect. GH falls ~1%/yr after 30 (somatopause). — GH selection guide