Vaginal DHEA for Postmenopausal UTIs, AI-Generated Bacteriophages, Transmissible Catfish Cancer, Mind-Reading BCIs and Neurotech Privacy, Angioedema Triggers, and P-tau217 Caution in Mild Cognitive Impairment

Broadcast from KSQD, Santa Cruz on 10-29-2026:

An emailer with recurring UTIs, pelvic floor and bladder-leaking issues, and newly advancing patchy baldness receives a layered reply: vaginal DHEA (which the vagina enzymatically converts to estrogen and testosterone) often works better than vaginal estrogen alone for postmenopausal UTI prevention, with the testosterone component helping build pelvic floor muscle—tight muscles can also be weak muscles, warranting specialized pelvic floor therapy. For the sudden patchy baldness advancing from the crown, Dr. Dawn points to alopecia areata (identifiable by exclamation-point hairs at lesion edges) as more probable than Demodex mites, with cortisone injections as initial treatment. Vaginal estrogen is now considered safe for breast cancer survivors.

Stanford's Evo AI model, trained on DNA from millions of species, generated 700,000 possible new viruses; researchers synthesized 285 as actual DNA molecules, and 16 proved viable as bacteriophages, opening a path to engineering viruses targeting antibiotic-resistant bacteria—while raising obvious biosecurity concerns.

Brown bullhead catfish in Lake Memphremagog on the Vermont-Quebec border carry a melanoma transmitted between fish via scratches from spine wounds during spawning; genetic analysis shows the tumors resemble each other more than their hosts, confirming clonal transmission like the handful of other known transmissible cancers in dogs and clams.

A Caltech brain-computer interface with electrodes implanted in the posterior parietal cortex (beyond the usual motor cortex) decoded pre-motor intention hundreds of milliseconds before conscious awareness in a paralyzed pianist—and in another subject tracked blackjack card values and stay-or-hit decisions. Dr. Dawn frames the ability to read pre-conscious thought as the week's Halloween horror, especially when paired with AI inference.

A caller describes several days of asymmetric lip swelling, with heavy recent ibuprofen use and daily turmeric drinks as potential culprits. Dr. Dawn confirms the squishy fluid-filled quality indicates angioedema (a histamine reaction), notes pill inactive ingredients as additional possible allergens, and recommends EpiPen access.

Consumer EEG headsets—and planned EEG-equipped AirPods—lack meaningful privacy protection; a 2024 analysis of 30 neurotech companies found nearly all retain complete control over user data, and state laws regulate raw neural signals but not AI-generat