Run the body like critical infrastructure.
A journal on performance under executive load, from a technologist who works inside healthcare and biotech.
I lead OTLEN, where we build AI infrastructure for revenue operations in healthcare and biotech. The role comes with long weeks, decisions that carry weight, and a remote team and client base spread across London, New York, San Francisco, Dubai, Riyadh and Singapore, so the working day never closes. Here I apply the discipline we bring to hospital systems to the one system I am responsible for around the clock: measure the load, protect recovery, and read the frontier of biotech by its evidence rather than its marketing.
Start with the loadHours a day when at least one of our cities is at work: London, New York, San Francisco, Dubai, Riyadh, Singapore. Live, with daylight saving.
01 The loadMajor cardiovascular events with semaglutide in the SELECT trial. Peptide medicine now has outcome data.
04 The frontierAI-enabled medical devices on the FDA’s public list, decisions through June 2026.
03 InstrumentsPressure is a load, and load has a physiology.
Responsibility does not stay at the office. The stress mediators that help in a crisis wear the body down when they never switch off, and the cumulative cost has a name in the literature: allostatic load.
For an executive the inputs are predictable. Long weeks, compressed sleep, travel across time zones, and decisions that cannot wait for a better night. I treat them as engineering constraints to design around, not as personality traits to push through.
Each city works 09:00 to 18:00 local time, shifted live for daylight saving. The brighter the cell, the more cities are open in that hour. The sleep window is an example of the seven-hour minimum for adults.
- 62.5h
Average work week of 27 CEOs tracked for three months. They slept 6.9 hours a night on average.
HBR 2018 - 17–19h
Awake for this long, people performed on some tests as poorly as at a blood alcohol level of 0.05%, or worse.
OEM 2000 - 6h × 14
Two weeks of six-hour nights produced deficits comparable to up to two nights without sleep, while people rated themselves only slightly sleepy.
Sleep 2003
The last finding matters most in a boardroom. The impairment arrives before the feeling does, so I measure it instead of trusting how I feel.
Frontier tools sit on top of the basics, never instead of them.
A strong body is not built from one perfect routine. It comes from a stack of basics done consistently: resistance training, conditioning, sufficient protein, useful sleep, recovery and sensible progression. The interesting work starts when those basics become a system you can observe and improve.
Programs are tools, not religions. Three questions decide any of them.
- 1What stimulus am I trying to create?
- 2What can I recover from?
- 3What evidence will tell me to change course?
-
BL-01
Resistance training
2+days a week
Minimum 2 of 7 daysAll major muscle groups
Muscle-strengthening work at moderate or greater intensity.
-
BL-02
Conditioning
150–300minutes a week, moderate
ModerateVigorousOr 75 to 150 minutes of vigorous activity, or an equivalent mix of the two.
-
BL-03
Protein
1.4–2.0g per kg a day
g / kgFor most people who train. The general adult baseline, the RDA, is 0.8 g per kg a day.
-
BL-04
Sleep
7+hours a night
HoursCEO average 6.9The adult minimum, on a regular basis. The 27 CEOs in the Harvard study averaged 6.9 hours, just under it.
-
BL-05
Recovery
No fixed number
Rest HRHRVBand: your own baselineSchematic
Resting heart rate and HRV are read against your own trend, not against someone else’s.
-
BL-06
Progression
No fixed number
Weeks: load rises, then steps backSchematic
Load or volume rises gradually when recovery allows. The training log is the evidence.
Doses summarize public guidelines for healthy adults. They are a reference point, not personal medical advice. Panels marked schematic show a shape, not data.
A number earns its place when it changes a decision.
Health technology has moved from step counts toward clinical-grade signals. More data is not the goal. Heart rate, HRV, blood pressure, glucose, sleep and laboratory results become valuable only when they change a decision, early enough to act on.
Some signals have public thresholds. The rest are read against your own baseline, and the tags say which is which.
- Blood pressurePublic thresholdsACC/AHA 2017
- Sleep durationPublic threshold, 7+ hoursAASM 2015
- Weekly activityPublic rangeWHO 2020
- Glucose, continuousYour own response curveOwn data
- Resting heart rate, HRVYour own baselineOwn data
- Biological age clocksResearch tools, not yet for clinical decisionseLife 2022
- GenomeSequenced once, read for life, with a clinicianClinician
- Laboratory resultsLab reference ranges, read with a clinicianClinician
- Mar 2024
The FDA cleared the first over-the-counter continuous glucose monitor. Glucose response became a consumer signal.
FDA 2024 - 1,614
AI-enabled medical devices on the FDA’s public list, decisions through June 2026.
FDA list - $95M → $500
Estimated cost of sequencing a human genome, 2001 to 2022.
NHGRI
Blood pressure, where the categories change
ACC/AHA 2017Normal
<120 and <80Keep the habits that got you here, and recheck yearly.
Elevated
120–129 and <80Lifestyle changes, and a recheck in 3 to 6 months.
Stage 1
130–139 or 80–89Lifestyle changes. A clinician weighs medication against overall cardiovascular risk.
Stage 2
≥140 or ≥90Lifestyle changes, and usually medication, managed with a clinician.
Peptides, read by evidence tier.
Peptides are where metabolic medicine is moving fastest, and where marketing runs furthest ahead of data. In a few years the incretin drugs went from diabetes, to obesity, to proven reductions in heart attack and stroke. At the other end, injectable “research peptides” are sold online with almost no human evidence behind them.
Working in biotech, I read the field the way a pipeline is read: by phase, by endpoint, and by who did the measuring.
Mean change in body weight in adults with obesity and without diabetes, the two drugs compared directly in one randomized trial (SURMOUNT-5).
Semaglutide
GLP-1 receptor agonistApproved, with outcome dataCut major cardiovascular events by 20% (hazard ratio 0.80) in people with overweight or obesity and heart disease, without diabetes.
Tirzepatide
GIP and GLP-1 receptor agonistApprovedApproved for chronic weight management in November 2023. Beat semaglutide on weight in a direct comparison.
Retatrutide
GIP, GLP-1 and glucagon receptor agonistPhase 3Phase 3 topline, May 2026: −28.3% at 80 weeks on the top dose. Company-reported and not yet peer reviewed; a US filing is planned for 2027.
BPC-157
Sold as a “research peptide”Pre-clinical onlyAnimal studies only. The FDA lists it among compounding substances that may carry significant safety risks, with little or no human safety data.
This is how I read a field, not a recommendation. Prescription medicines need a prescriber who knows your history. Unapproved peptides come with no verified dose, purity or safety.
Change one variable. Then decide.
Nutrition phases, training changes, recovery practices and new tools can be treated like experiments. Define the question. Change one meaningful variable. Track a few outcomes. Decide what the result means. Then move on.
It is the same discipline we use when we put a new model into a hospital’s revenue cycle, and it makes health less emotional and more empirical.
Protocol
Example- 1
Define the question
Does a fixed wake time protect my sleep through weeks of late calls with London and New York?
- 2
Change one variable
The same wake time every day, travel and weekends included. Nothing else changes.
- 3
Track a few outcomes
Sleep duration, resting heart rate, HRV trend, and a 1 to 5 rested score each morning.
- 4
Decide what it means
After three weeks against a two-week baseline, keep it if the outcomes improve and nothing else slips.
- 5
Move on
Write the result down, then pick the next question.
Keep more capability for longer.
Longevity is not an excuse to avoid living. It is the attempt to keep more capability for longer: strength, mobility, cardiovascular capacity, cognition, independence, and the freedom to do demanding things.
Longevity science is a frontier of its own. Until it has outcome data, capability is the measure I trust. The objective is not a perfect body. It is a body that keeps up with the ambitions of the person using it.
- L1Strength400.00 m
- L2Mobility407.04 m
- L3Cardiovascular capacity414.70 m
- L4Cognition422.37 m
- L5Independence430.03 m
- L6Freedom to do demanding things437.70 m
Lap length per lane on a standard 400 m track: 36.50 m bend radius, 84.39 m straights, 1.22 m lanes. The outer lanes run further, which is the point. Track standard
The objective is not to optimize everything. It is to keep increasing what the body is capable of doing.
This is an editorial starting point, designed to grow with original articles, projects, research, tools, examples and case studies specific to this property.
Figures summarize public guidelines, peer-reviewed trials and regulatory records. They are not personal medical advice, and nothing here describes my own treatment.
- HBR 2018Porter ME, Nohria N. How CEOs manage time. Harvard Business Review, July–August 2018. hbr.org
- Track standardWorld Athletics, Track and Field Facilities Manual: 400 m standard track geometry, summarized in Running track.
- NEJM 1998McEwen BS. Protective and damaging effects of stress mediators. N Engl J Med. 1998;338:171–179. doi:10.1056/NEJM199801153380307
- OEM 2000Williamson AM, Feyer AM. Moderate sleep deprivation produces impairments in cognitive and motor performance equivalent to legally prescribed levels of alcohol intoxication. Occup Environ Med. 2000;57:649–655. doi:10.1136/oem.57.10.649
- Sleep 2003Van Dongen HPA et al. The cumulative cost of additional wakefulness. Sleep. 2003;26(2):117–126. doi:10.1093/sleep/26.2.117
- WHO 2020World Health Organization. WHO guidelines on physical activity and sedentary behaviour. Geneva, 2020. who.int
- AASM 2015Watson NF et al. Recommended amount of sleep for a healthy adult. J Clin Sleep Med. 2015;11(6):591–592. doi:10.5664/jcsm.4758
- ISSN 2017Jäger R et al. International Society of Sports Nutrition position stand: protein and exercise. J Int Soc Sports Nutr. 2017;14:20. doi:10.1186/s12970-017-0177-8
- IOM 2005Institute of Medicine. Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids. 2005. doi:10.17226/10490
- ACC/AHA 2017Whelton PK et al. 2017 ACC/AHA guideline for the prevention, detection, evaluation, and management of high blood pressure in adults. Hypertension. 2018;71:e13–e115. doi:10.1161/HYP.0000000000000065
- FDA 2024FDA. FDA clears first over-the-counter continuous glucose monitor. 5 March 2024. fda.gov
- FDA listFDA. Artificial Intelligence-Enabled Medical Devices. 1,614 entries, latest decision 29 June 2026. fda.gov
- NHGRINational Human Genome Research Institute. DNA sequencing costs: data. genome.gov
- eLife 2022Belsky DW et al. DunedinPACE, a DNA methylation biomarker of the pace of aging. eLife. 2022;11:e73420. doi:10.7554/eLife.73420
- NEJM 2023Lincoff AM et al. Semaglutide and cardiovascular outcomes in obesity without diabetes (SELECT). N Engl J Med. 2023;389:2221–2232. doi:10.1056/NEJMoa2307563
- FDA 2023FDA. FDA approves new medication for chronic weight management. November 2023. fda.gov
- NEJM 2025Aronne LJ et al. Tirzepatide as compared with semaglutide for the treatment of obesity (SURMOUNT-5). N Engl J Med. 2025. doi:10.1056/NEJMoa2416394
- Topline 2026Retatrutide TRIUMPH-1 phase 3 topline results, reported by AJMC, 21 May 2026. Company-reported, not yet peer reviewed. ajmc.com
- FDA 2023FDA. Certain bulk drug substances for use in compounding that may present significant safety risks (BPC-157 entry). fda.gov