Q&A with Gary: Fasting, Hyperbaric, Sleep, Berberine and More! | TUH #194

Brecka calls this ‘the most underrated sleep hack on the planet’ because it is free and accessible, yet people don’t give it enough credit. He explains that even on foggy or dreary winter days, the necessary light wavelengths still pass through cloud cover. The key timing is the first 45 minutes after sunrise—‘first light’—which contains no UVA or UVB, eliminating sun-damage concerns. This protocol addresses the root of many circadian disruptions: a misaligned cortisol/melatonin cycle. When morning light is skipped, the brain never gets a definitive ‘daytime’ signal, which leads to low daytime alertness and inadequate melatonin release at night, undermining sleep quality. He frames this as non-negotiable foundational behavior for anyone struggling with sleep or energy.

Brecka highlights that the three lab markers to evaluate are fasting glucose, hemoglobin A1C (three-month average), and fasting insulin (the body’s response to blood sugar). He states that in multiple side-by-side trials, berberine outperformed prescription metformin, making it a compelling natural alternative. He personally sent three studies to a VIP client that day and plans to link them in the show notes. The protocol of taking it with meals targets post-prandial glucose control, while the up-to-three-times-daily frequency maintains steady AMPK activation throughout the day. For those with poor blood sugar regulation, this simple addition can have a significant impact on overall metabolic health.

Brecka has seen ‘some of the worst endocrine disasters’ in his clinic among young women who adopted narrow eating windows while having low baseline blood sugar. He emphasizes the need for a blood test before beginning any fasting regimen, specifically looking at glucose, insulin, and A1C. The A1C threshold of 5.2 serves as a hard cutoff: below that, do not fast; above 5.5, fasting can be transformative. The protocol of starting with 12:12 before advancing to 16:8 allows the body to adapt and avoids overly aggressive caloric restriction. He positions this as a precision approach, rejecting the blanket recommendation of intermittent fasting for everyone.

Brecka notes that most people only set alarms to wake up, never to go to bed, which leads to erratic bedtimes and poor sleep architecture. By setting a ‘go-to-bed alarm’ 15 minutes before the desired sleep time, individuals can consistently wind down. He stresses that this is not about sleep duration but sleep quality—getting into deeper, restorative stages. The full-face cotton eye mask (wrapping from top of face to cheeks) is a cheap investment that completely occludes light, which is critical because even dim light can fragment sleep. The mention of ‘magnesium 38’ is a direct, simple intervention for those who can’t turn off their thoughts; he positions it as a first-line sleep aid without complexity.

Brecka explains that hyperbaric chambers were originally designed for diabetic ulcers, burns, peripheral neuropathy, and decompression sickness (the bends). Today, their general-use popularity stems from the ability to boost mitochondrial density and flood oxygen into capillary networks that often become hypoxic. He gives a practical tip: not all chambers are equal. Home soft chambers typically max out at 1.3 atmospheres and provide broad wellness benefits, while hard shell medical chambers that reach depths equivalent to a 33-foot scuba dive (about 2 ATA) appear better for cognitive dysfunction and neuroinflammatory issues like traumatic brain injury, concussion, and autism, based on emerging studies. Crucially, he stresses the safety distinction: ambient air compression is safe for home use, but 100% oxygen adds fire and explosion hazards and requires a hospital setting. This clear rule keeps people from misusing medical-grade equipment.

Brecka emphasizes that sound is converted to an electrical signal inside the brain, not in the ear’s mechanical parts. Therefore, inflammatory or neuroinflammatory conditions in the brain, viral triggers, and a hyper-sympathetic nervous system can generate the perception of sound without any external sound wave. He describes how trapped catecholamines from chronic stress over-stimulate the auditory processing areas, creating tinnitus ‘out of nowhere’. As a solution, he recommends regular parasympathetic activation through breathwork, yoga, and meditation, as well as emerging red light devices. He mentions a clinic in Miami (Sentiner Wellness) that uses a powerful laser inside the ear, and consumer red light necklaces with ear inserts designed to deliver high-intensity red light to reduce local inflammation and dampen the overactive signal. He frames the combination of nervous system down-regulation and targeted red light as a promising approach for the large portion of tinnitus patients who have no mechanical damage.

Brecka explains that the relevant lab markers for blood sugar control are fasting glucose, hemoglobin A1C (the three-month average), and insulin (the pancreatic hormone released in response to glucose). He says berberine works like a glucophage—the same class as metformin—but that the head-to-head data favor berberine. As a result, he is ‘a huge fan’ and recommends it especially for people struggling with elevated blood sugar. He mentions that he just sent three studies on berberine to a VIP client (links to be provided in show notes). He gives a practical dosing strategy: take berberine with meals up to three times a day to manage post-meal glucose excursions and improve overall insulin sensitivity.

Brecka describes this as ‘some of the worst endocrine disasters’ he has witnessed in his clinic system: young, menstruating females who ate within a very narrow feeding window. He explains the physiological chain: when blood sugar is already low (A1C <5.2), prolonged fasting makes the pituitary gland interpret the energy deficit as starvation. The pituitary then dials back thyroid-stimulating hormone (TSH), which decreases production of T4 and subsequently T3, slowing the entire metabolism and making weight gain easier. Additionally, because the pituitary regulates the menstrual cycle (follicular, ovulatory, luteal phases), this perceived starvation can throw off cycle regularity. For those with high blood sugar (A1C ≥5.5 or pre-diabetic/diabetic), however, he says intermittent fasting can be life-changing by improving insulin resistance. He advises such individuals to start with a 12:12 eating-fasting window and gradually compress to 16:8.

Brecka explains that grass-fed, grass-finished cattle eat a diverse array of grasses, cloves, and foliage—their natural diet—rather than processed grains, soy meal, and high-fructose corn syrup common in feedlots. This natural diet shifts the omega-3 to omega-6 fatty acid ratio in the meat toward anti-inflammatory balance and reduces the need for antibiotics, steroids, and vaccines. Importantly, he states that the human gut produces GLP1 (the same hormone targeted by semaglutide drugs) in direct response to nutrient density, so consuming more nutrient-dense grass-fed meat can naturally elevate GLP1. He also notes that grass-fed animals live longer (4–6 years vs. 2–3 years), producing more mature, well-marbled meat. Although slightly more expensive, he observes that grass-fed prices are beginning to decline.