Peptides for Nerve Regeneration After Surgical Injury, Infrared Sauna Safety Selection, Estrogen-Raising Medications in Men, and mRNA Flu Vaccine Approval

Broadcast from KSQD, Santa Cruz on 8-06-2026:

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An emailer with persistent nine-month nerve damage in her right leg after a hysterectomy asks whether peptides could help. Dr. Dawn attributes the injury to lithotomy positioning during surgery, then reviews the main nerve-regeneration candidates in the FDA peptide review pipeline: BPC-157 (Body Protection Compound, strong rat data on sciatic nerve recovery with thicker myelin sheaths), intracellular sigma peptide (targets glial scar CSPGs blocking CNS regrowth), C3 peptide 156-181, GHK-Cu (copper peptide, upregulates nerve growth factor and neurotrophin-3), self-assembling hydrogel scaffolds for bridging nerve gaps, ARA-290/cibinetide (an erythropoietin fragment with early small fiber neuropathy trial data), and Semax (used internationally for stroke rehab). She adds standard functional-medicine adjuncts: alpha-lipoic acid, methylated B12, and methylfolate at high doses for six months.

An emailer asks about safe features when buying an infrared sauna. Dr. Dawn covers three concerns: EMF exposure (look for shielded/grounded heaters testing under 1 milligauss at seat level, avoid unshielded Wi-Fi and Bluetooth panels); VOC off-gassing (avoid plywood, particle board, and MDF because of formaldehyde and benzene release, and avoid Western red cedar and pine because of high terpene emissions and instead choose poplar, basswood, or eucalyptus); and avoid built-in oxygen ionizers, which produce ozone as a coronal-discharge byproduct that irritates airways and generates secondary oxygenated VOCs.

Dr. Dawn covers the surprisingly long list of medications that raise estrogen in middle-aged men—including nearly all antidepressants and antiepileptics, statins, NSAIDs (specifically naproxen and indomethacin but not ibuprofen), most blood pressure medications, PPIs, H2 blockers, Parkinson's drugs, antihistamines, and muscle relaxants. She recommends annual monitoring of the estrogen-to-testosterone ratio and offers rebalancing options: topical chrysin (blocks aromatization), indole-3-carbinol, calcium D-glucarate (blocks enterohepatic estrogen recirculation), soy (competitive receptor inhibition), and grape skin extract.

The first mRNA-based flu vaccine was approved this week for adults 50 and over. Beyond the 27% improvement in seasonal efficacy over conventional shots, the strategic advantage is manufacturing speed. This will be critical when or if bird flu mutates to respiratory human transmission. Since mRNA vac