Executive summary
Today's briefing converges on three interlocking pillars of longevity optimization: the emerging science of trained innate immunity (anchored by Dr. Mihai Netea's work at Radboud University), a systems-level reassessment of NAD+ biology explained by Dr. Nicola Conlon on the Ben Greenfield Life Podcast, and a five-domain framework for resolving sleep dysfunction presented by Dr. Mark Hyman. Across all three sources, a single principle recurs: targeting upstream regulatory mechanisms—whether epigenetic reprogramming of myeloid cells, NAMPT enzyme activation, or circadian entrainment—produces more durable outcomes than downstream symptom suppression. Read on for specific protocols, biomarker targets, and measurement frameworks you can begin implementing today.
Key takeaways
- According to Dr. Nicola Conlon on the Ben Greenfield Life Podcast, CD38 consumes approximately 100 NAD+ molecules per enzymatic cycle versus 6–7 for sirtuins—meaning supplementing NR or NMN without inhibiting CD38 redirects newly available NAD+ toward inflammation, not repair. A systems-level protocol addressing NAMPT activation (via rutin and ALA/AMPK), CD38 inhibition (via apigenin/parsley extract), and NNMT blockade (via EGCG/green tea extract) is mechanistically superior to precursor loading alone, as demonstrated in Dr. Conlon's 2024 published 28-day double-blind RCT showing a 1.26-year biological age reversal via GlycanAge.
- According to Dr. Mark Hyman, nocturnal hypoglycemia—driven by high-glycemic dinners, isolated refined carbohydrates, or alcohol metabolism—triggers a cortisol and adrenaline surge between approximately 2 AM and 4 AM that fragments sleep architecture. The practical protocol is a protein-and-fat-anchored dinner, elimination of added sugars in the 2–3 hours before sleep, alcohol consumed no less than 4 hours before sleep (or eliminated during optimization phases), and magnesium glycinate taken 30–60 minutes before target sleep time. Function Health data shows more than 45% of their member population is magnesium-deficient, and ferritin below 45 ng/mL—reported as 'normal' by conventional labs with a floor of 16 ng/mL—is a frequently missed root cause of non-restorative sleep.
- As established by Dr. Mihai Netea at Radboud University, Nijmegen, Netherlands, innate immune cells can be epigenetically reprogrammed via vaccines like BCG—which has approximately 100 years of safety data—to maintain elevated activation and provide broad-spectrum protection across pathogen classes through durable chromatin remodeling of the myeloid cell lineage. No human-ready experimental protocol beyond foundational vaccine verification currently exists, but the actionable steps for optimizers are: confirm BCG, Shingrix, MMR, and polio vaccination status; track immune resilience via illness frequency logs and periodic hs-CRP and IL-6 panels; and monitor HRV deviation during illness as a proxy for immune activation load.
THE DAILY OPTIMIZER
Three high-signal topics define today's briefing, and they share a common architecture: each dismantles a widely held oversimplification and replaces it with a mechanistically precise, actionable protocol. First, immunology researcher Dr. Mihai Netea at Radboud University, Nijmegen, Netherlands has spent approximately 15 years establishing that the innate immune system—long dismissed as a non-specific blunt instrument—can be epigenetically reprogrammed to provide broad-spectrum, durable protection. This is not theoretical; BCG has nearly 100 years of safety and epidemiological data supporting non-specific protective effects. Second, molecular biologist Dr. Nicola Conlon, speaking on the Ben Greenfield Life Podcast, dismantles the prevailing NR-versus-NMN debate as a distraction from the three actual root causes of NAD+ decline: NAMPT enzyme dysfunction, CD38-mediated wastage consuming approximately 100 NAD molecules per enzymatic cycle, and NNMT-driven precursor excretion. Her published 28-day double-blind RCT showed a measurable biological age reversal of 1.26 years via GlycanAge testing. Third, Dr. Mark Hyman frames sleep disruption not as a single-variable problem but as the emergent output of five converging failure domains—circadian misalignment, autonomic dysregulation, nocturnal hypoglycemia, hormonal imbalance, and inflammation-driven nutrient depletion—with Function Health data across their member population showing approximately 70% carry at least one nutritional deficiency at RDA-defined deficiency levels. Each section below provides specific protocols, dosing details, and measurement frameworks. The intelligence is dense—work through it systematically.
DEEP DIVE: NAD+ Systems Biology — Why Precursor Loading Fails and What to Do Instead
According to Dr. Nicola Conlon on the Ben Greenfield Life Podcast, the NAD+ supplement industry has constructed its entire commercial architecture around the wrong problem. The dominant narrative—that declining NAD+ is primarily a precursor supply issue, solvable by consuming NR (nicotinamide riboside) or NMN (nicotinamide mononucleotide)—misidentifies the bottleneck entirely. **The Three Root Causes of NAD+ Decline** As Dr. Conlon explains, NAD+ declines by approximately half every 20 years from birth: by age 20, levels are roughly 50% of newborn baseline; by age 40, approximately 25%. Three converging mechanisms drive this decline: **Root Cause 1 — NAMPT Enzyme Dysfunction:** The salvage pathway—the mechanism by which cells manufacture the vast majority of their NAD+ endogenously—depends on the rate-limiting enzyme NAMPT (nicotinamide phosphoribosyltransferase) to convert recycled nicotinamide back into NAD+. NAMPT activity declines with age. According to Dr. Conlon, NR dose-escalation clinical studies show NAD+ levels plateau regardless of how much NR is administered—a finding consistent with a NAMPT bottleneck, not a raw material shortage. Flooding a factory with more raw material does not fix broken machinery. **Root Cause 2 — CD38 Overexpression:** CD38 is an enzyme activated by inflammation that consumes NAD+ at a catastrophically inefficient rate—approximately 100 molecules of NAD+ per enzymatic cycle, compared to 6–7 molecules consumed by sirtuins or DNA repair enzymes. Older individuals carry chronically elevated CD38 expression due to age-related low-grade inflammation (inflammaging). Critically, as Dr. Conlon notes, clinical trials of NR supplementation show elevated ADPR (the downstream CD38 metabolite), indicating that supplemented NAD+ precursors are preferentially captured by CD38 and redirected toward inflammatory signaling rather than sirtuin activation or DNA repair. **Root Cause 3 — NNMT-Mediated Precursor Excretion:** When NAMPT is dysfunctional, recycled nicotinamide accumulates. The cell responds by activating NNMT (nicotinamide N-methyltransferase), which methylates nicotinamide into methyl-nicotinamide—a form that is then excreted in urine, permanently removing it from the NAD+ pool. This is why, per Dr. Conlon, NR dose-escalation trials show methyl-nicotinamide excretion rising linearly with dose while intracellular NAD+ plateaus: you are not building NAD+, you are building a urine metabolite. It also explains why high-dose NR and NMN users report feeling better when adding methyl donors like TMG or SAMe—they are supplementing to offset a side effect of their primary supplement. **The Systems-Level Protocol** Dr. Conlon developed the Nuchido Time+ formulation to address all three root causes simultaneously. The logic is mechanistically precise: - **Nicotinamide (Vitamin B3/NAM):** The precursor. Freely diffuses across cell membranes without requiring specialized transporters, unlike NR or NMN. It is the natural substrate of the salvage pathway and the endogenous molecule the cell already recycles. Dr. Conlon notes head-to-head trials show no clear benefit of the more expensive NR or NMN over plain nicotinamide. - **Rutin:** A direct NAMPT activator. Upregulates NAMPT gene expression at the transcriptional level—switching the recycling machinery back on. Targets Root Cause 1 directly. - **Alpha-Lipoic Acid (ALA):** Activates AMPK (AMP-activated protein kinase)—the same cellular energy sensor upregulated by exercise and fasting—which then signals NAMPT upregulation. This is a second, complementary pathway targeting Root Cause 1. ALA effectively mimics the molecular signal of a workout or fast at the enzyme level. - **Apigenin (delivered as parsley extract):** A direct CD38 inhibitor. Prevents the runaway NAD+ consumption that occurs in the presence of chronic inflammation. Pure synthetic apigenin has poor bioavailability; the natural food-matrix form from parsley extract is required for adequate absorption. Targets Root Cause 2. - **EGCG (delivered as green tea extract):** Inhibits NNMT, preventing nicotinamide from being methylated and excreted. Retains the precursor pool inside cells where NAMPT can recycle it. Targets Root Cause 3 and reduces the methyl donor depletion burden seen with standalone NR/NMN. **The Evidence Base** Dr. Conlon published a double-blind, placebo-controlled, crossover human RCT in 2024 titled *'The use of a systems approach to increase NAD+ in human participants.'* Key findings at 28 days: significant intracellular NAD+ increase detectable within 7 days and continuing through 28 days; significant upregulation of NAMPT enzyme expression versus placebo (confirming mechanism, not merely precursor loading); significant reduction in inflammatory cytokines (confirming CD38 inhibition); reduction in glycated serum protein (GSP), a cardiovascular biomarker; and a biological age reversal of 1.26 years measured via GlycanAge. Sirtuin expression increased significantly without resveratrol in the formulation. **On NAD+ IVs:** Dr. Conlon states she would personally not receive an NAD+ IV. She cites a preprint human clinical trial (presented at conference) showing IV NAD+ administration produced elevated white blood cell counts, neutrophil elevation, and increased cytokines—consistent with an acute inflammatory response. Her mechanistic explanation: infusing a large intracellular molecule into extracellular space signals cellular trauma to the immune system. NAD+ has no beneficial extracellular function in most tissues; its only known extracellular effect is CD38 activation, which drives inflammation. The commonly reported side effects—nausea, heart palpitations during infusion—are consistent with this mechanism. **The Lifestyle Synergy Stack** According to Dr. Conlon, exercise and fasting are the most potent natural NAMPT activators because both activate AMPK, which signals NAD+ production in response to energy deficit. The ALA in the Nuchido formulation mimics this molecular signal. These interventions are synergistic, not competitive: hormetic stressors (sauna, cold exposure, fasting, exercise) largely work *through* NAD+ elevation, so supporting NAD+ does not blunt hormesis—it may amplify it. Dr. Conlon's personal protocol is daily use, 7 days per week, combined with sauna and cold exposure.
METRICS & MEASUREMENT
To determine whether your NAD+ optimization protocol is producing meaningful biological change, Dr. Nicola Conlon (Ben Greenfield Life Podcast) outlines a practical measurement stack. Begin with a GlycanAge biological age test at baseline—this is the same tool used in her 28-day RCT that detected a 1.26-year reversal. Retest at 30 and 90 days. For inflammatory status and CD38 activity, run a high-sensitivity CRP (hs-CRP) panel at baseline and again at 90 days; a meaningful reduction signals CD38 inhibition is reducing NAD+ wastage into inflammatory pathways. Baseline intracellular NAD+ can be measured via specialized fingerprick blood testing, with the RCT showing detectable increase within 7 days. For daily tracking, use a wearable (Oura Ring or Whoop) to capture HRV and sleep quality scores as proxies for the NAD+-CLOCK/BMAL1 circadian axis. As Dr. Conlon explains, NAD+ oscillation directly drives the master circadian transcription factors CLOCK and BMAL1, which govern expression of approximately 20,000 genes. Worsening HRV trend over 4 or more consecutive weeks despite supplementation is a stopping signal warranting protocol reassessment.
THE LONGEVITY TOOLKIT: GlycanAge Biological Age Testing
As referenced in Dr. Nicola Conlon's 2024 published RCT (discussed on the Ben Greenfield Life Podcast), GlycanAge is a biological age assessment tool based on immunoglobulin G (IgG) glycan profiling—a measurement of glycan structures attached to antibodies that reflect the cumulative inflammatory status of your immune system over time. Unlike chronological age or simpler epigenetic clocks, GlycanAge captures the inflammatory component of biological aging, which makes it particularly relevant for protocols targeting CD38-mediated NAD+ wastage and chronic low-grade inflammation. In Dr. Conlon's 28-day double-blind crossover RCT, participants using the systems-level NAD+ formulation showed a statistically significant biological age reversal of 1.26 years—a meaningful signal in a protocol of that duration. For the optimizer, GlycanAge functions as a ground-truth validation tool: it converts your supplement and lifestyle interventions into a quantifiable biological outcome. Use it at baseline before initiating any NAD+ protocol, and retest at 28–30 days and 90 days to track trajectory. A stable or improving score suggests your protocol is working at the immune-aging level; a worsening score warrants root-cause investigation before continuing.
FUEL & RECOVERY: The Nocturnal Hypoglycemia Protocol
According to Dr. Mark Hyman in his office hours session, one of the most overlooked drivers of fragmented sleep is nocturnal hypoglycemia—a blood glucose drop during sleep that triggers a cortisol and adrenaline surge between approximately 2 AM and 4 AM, producing sudden wakefulness, racing thoughts, and high alertness. This mechanism is the same physiological process as the natural cortisol awakening response; it is simply firing 3–4 hours prematurely. The practical recovery protocol is straightforward: anchor your dinner with protein and fat as the dominant macronutrients, with fiber-rich vegetables. Minimize isolated refined carbohydrates and eliminate added sugars in the 2–3 hours before sleep. Alcohol warrants particular attention—as Hyman explains, alcohol facilitates sleep onset but produces a rebound stress-hormone surge as blood levels drop, commonly triggering early-morning waking. Hyman notes his personal Oura Ring data confirms even small amounts of alcohol measurably degrade sleep architecture metrics. For supplementary support, magnesium glycinate taken 30–60 minutes before your target sleep time supports GABA receptor activation, promotes nervous system downregulation, and provides mild blood sugar stabilization. The RBC magnesium blood test is the accurate measurement tool—standard serum magnesium is not a reliable proxy for cellular magnesium status, per Hyman's clinical guidance.
SUPPORTING INTELLIGENCE: Trained Innate Immunity and the Immune Resilience Baseline
Building on today's core NAD+ discussion, a parallel frontier in immune optimization deserves attention. As explained in a discussion featuring immunology researcher Dr. Mihai Netea at Radboud University, Nijmegen, Netherlands, the innate immune system—previously characterized as a non-specific first responder incapable of memory—can be epigenetically reprogrammed to provide durable, broad-spectrum protection across pathogen classes. This field, which Dr. Netea's work has established over approximately 15 years, represents a genuine expansion of how immunological memory is understood. **The Mechanism** Dr. Netea identifies two primary mechanisms. First, vaccines like BCG induce epigenetic changes to myeloid cells—macrophages, monocytes, and related innate immune cells—by shifting specific genomic regions into a more accessible, 'open' chromatin state. This keeps defense and inflammatory genes transcriptionally ready, allowing these cells to respond faster and more aggressively to any subsequent pathogen, regardless of whether it was the original vaccine target. Second, trained innate immunity appears to improve signaling between the innate and adaptive immune arms, with downstream effects on adaptive immune response quality still being characterized. **The Evidence Base** BCG (Bacillus Calmette-Guérin), a tuberculosis vaccine with approximately 100 years of safety data and epidemiological use, was the original discovery signal: Dr. Netea observed that BCG was producing protective effects against a broad range of pathogens beyond tuberculosis. Other vaccines showing preliminary trained innate immunity signals include Shingrix, measles, and polio vaccines, though these mechanisms are less characterized than BCG. A Stanford University mouse study developed an intervention intentionally designed to recreate BCG-induced trained innate immunity using a more targeted system. Key finding: a single intervention kept lung-localized innate immune cells in a hypervigilant state providing protection against viruses, bacteria, and allergens. Critical caveat: this is animal data only. The researcher in this discussion was explicit that mouse immune systems differ fundamentally from human systems, and laboratory mice raised in pathogen-free environments have naive immune baselines that do not reflect decades of human pathogen exposure. No human-translatable protocol derived from the Stanford work currently exists. **What Optimizers Can Do Right Now** There is no experimental self-protocol to extract from the Stanford mouse work. The actionable implementation at this stage is foundational: - **Verify BCG vaccination status:** Confirm via childhood vaccination records or tuberculin skin test (PPD) with a physician. If you received BCG, you may carry some degree of trained innate immunity priming, though duration is under active investigation. If BCG was not received and is available and indicated in your country, discuss with a physician. - **Confirm current vaccine portfolio:** Shingrix (CDC recommends age 50+, though some optimizers explore earlier), MMR immunity via antibody titer test (serum antibody levels), and polio status. These may carry trained innate immunity benefits beyond their primary indications per Dr. Netea's research. - **Track immune resilience as a proxy biomarker:** Log all illness episodes (duration, severity, recovery time) year-over-year. Monitor HRV deviation during illness as an indirect measure of immune activation load. Run periodic hs-CRP and IL-6 panels—chronically elevated baseline inflammatory markers indicate CD38-activating inflammaging that drains both NAD+ and innate immune reserves. A standard CBC panel's WBC differential (monocyte and neutrophil counts) provides a window into myeloid cell activity. **Key Timeline Reality:** The duration of trained innate immunity effects in humans after BCG vaccination is still under active investigation. Whether periodic boosting is required or a single exposure produces durable epigenetic programming remains an open research question. The human-ready protocol is in development; understanding the mechanism now positions you to evaluate it rigorously when clinical data arrives.
SLEEP SYSTEM AUDIT: The Five Failure Domains
According to Dr. Mark Hyman in his office hours session, non-restorative sleep is not a single-variable problem. He identifies five primary failure domains that must be assessed systematically. **Domain 1 — Circadian Rhythm Disruption:** The suprachiasmatic nucleus reads light signals, not intent. Blue-spectrum light at night suppresses melatonin and keeps the HPA axis primed. Protocol: minimum 15 minutes of outdoor light within 30–60 minutes of waking, eyes unshielded; transition to warm-spectrum low-intensity lighting post-sunset; consistent sleep/wake timing daily. Hyman's personal anchor window is 10 PM to 6:37 AM. **Domain 2 — Autonomic Dysregulation (Tired-and-Wired):** Chronic sympathetic dominance—high cortisol, elevated catecholamines—signals the brain that sleep is incompatible with survival. Normal cortisol follows a high-morning, low-evening curve; chronic stress inverts this. Hyman cites Robert Sapolsky's *Why Zebras Don't Get Ulcers* as the foundational framework: unlike zebras, humans sustain unresolved chronic stress without returning to baseline. Protocol: morning breathwork and meditation daily; evening Epsom salt bath with lavender essential oil (Hyman cites published research showing lavender lowers cortisol); yoga nidra/NSDR as referenced by Andrew Huberman. **Domain 3 — Nocturnal Hypoglycemia:** Covered in detail in the Fuel & Recovery section above. **Domain 4 — Hormone Imbalances:** Progesterone carries intrinsic GABAergic properties and declines in perimenopause, directly disrupting sleep. Estrogen regulates body temperature and cortisol sensitivity; its fluctuation drives hot flashes and early-morning waking. Thyroid dysfunction at both extremes disrupts sleep architecture. Protocol: comprehensive hormone panel (cortisol rhythm, full thyroid panel including TSH, free T3, free T4, and reverse T3, plus sex hormones) via a platform like Function Health. **Domain 5 — Inflammation and Nutrient Depletion:** Hyman cites Function Health data showing approximately 70% of their health-seeking member population carry at least one nutritional deficiency at RDA-defined deficiency levels—with general population prevalence likely exceeding 90%. Sleep-critical nutrients include magnesium (deficient in more than 45% of their member population), ferritin (Hyman uses a functional threshold of greater than 45 ng/mL versus the conventional lab 'normal' floor of 16 ng/mL), B vitamins, omega-3 fatty acids, and vitamin D. Individuals with ferritin between 16–44 ng/mL will be told they are normal by standard care while experiencing significant sleep disruption—this is a frequently missed root cause. **The Supplement Stack (Evidence-Tiered):** - Magnesium glycinate or L-threonate: evening, 30–60 minutes before sleep. Glycinate for nervous system calming via GABA receptor cofactor activity; threonate for blood-brain barrier penetration and cognitive plus sleep synergy. - Glycine: before sleep; research commonly uses 3 grams; lowers core body temperature, a key trigger for sleep onset. - L-theanine: best for racing-mind, anxiety-driven sleep-onset insomnia; promotes alpha-wave brain activity without sedation. - Low-dose melatonin: 0.5 mg, short-term use only for circadian disruption from travel. Hyman is explicit that high-dose melatonin (common OTC doses of 5–10 mg) is physiologically excessive and that chronic use suppresses endogenous melatonin production and causes morning grogginess.
Sources
- The Economist — 'This vaccine could stop the next pandemic' (featuring Dr. Mihai Netea, Radboud University, Nijmegen, Netherlands)
- Dr. Eric Berg DC — '7 Healthy Foods Secretly Destroying Your Metabolism'
- Ben Greenfield Life Podcast — 'The NAD Mistake 99% of Biohackers Make' (featuring Dr. Nicola Conlon, molecular biologist, founder of Nuchido)
- RSDSA (RCSA InReform Edition #44, April 2026) — 'April 2026 — In Rare Form Overview'
- Dr. Eric Berg DC — 'The Dr. Berg Show LIVE — April 24, 2026'
- Mark Hyman, MD — 'Can't Sleep? Here's What's Actually Happening'
- drsuneeldhand — 'You're AMAZING: THANK YOU'