Quantified Bob

12/23/2025

I just added these cool Sky Portal flicker-free circadian lights from .co to my home workspace. During the day they give off white light (with a gap in the 430-460nm blue light "hazard" range and boosted output at ~415nm and 480nm to target opsin sensitive to that range), and in the evening the temperature can be adjusted to a deeper amber color (boosted 660 nm output). Power and ratio k***s allow tweaking brightness and white/amber blending.

07/11/2025

🚨 "Out of range" or optimized for longevity? 🤔

My omega fatty acid labs from flagged several results as abnormal - high EPA, DHA, DPA, and "low" AA/EPA and Omega-6:3 ratios.

But after running the data through a functional health/longevity lens (using ChatGPT), here’s what actually came to light:

✅ Omega-6:3 Ratio: 3.0 - Ideal for inflammation control
✅ AA/EPA Ratio: 2.6 - Excellent anti-inflammatory marker
✅ Omega-3 Index (EPA + DHA): 10.9% - Cardioprotective
✅ EPA + DHA - Far above optimal thresholds for brain, HRV, and vascular health
✅ Linoleic acid (24.8%) & Arachidonic acid (12.3%) - In range, not elevated

📉 TL;DR: Context matters. "Out of range" isn’t always bad - it can signal peak optimization when the goal is performance, not just "normality"!

03/02/2023

In Austin this week for our quarterly .labs off-site/"hacker house" with my co-founder to code away on our next product/app ideas. Bonus of being in Austin this time is we get to meet up with friends!

We live on opposite sides of the country so we make an effort to get together IRL every 3-4 months for a week of focused work - a few of our most successful products emerged from previous off-site hackathons!

(Little known fact: Jeremy and I first met at the first-ever Biohacking conference that .asprey organized at a San Francisco bar nearly a decade ago for less than 100 people!)

01/07/2023

Happy New Year! Excited to see PepCalc, the peptide calculator app I co-developed, reach Apple's top 20 paid Health & Fitness! 👉

PepCalc is an easy to use peptide calculator app that determines how many milligrams of research peptides are in each unit or tick mark of an insulin or tuberculin syringe after reconstitution. It's the easiest way to accurately calculate peptide doses. Available on iOS and Android!

11/27/2022

Here is my annual mega-list of the best wellness optimization and and biohacking-related Black Friday/Cyber Monday deals! Save big on supplements, saunas, lab testing, sleep and recovery tech, nootropics, water quality, and more! https://quantifiedbob.com/biohacking-deals-sales/

06/01/2022

Be sure to check out Reputable Health, a new “decentralized science” platform that allows members to run self-betterment experiments and share results of what worked and what didn’t. By collectively running experiments and sharing datasets, their goal is to build the real world evidence missing to credibly determine the efficacy of any health and wellness protocol.

A number of us in the community have already contributed experiment ideas, including Dr. Amy Killen (“Improve REM sleep scores by having an or**sm prior to sleeping”), Sean Wells (“Stay in ketosis using dihydroberberine”), Ben Greenfield, Warrior Woman Mode, Max Gotzler, and more!

Reputable is a Decentralized Autonomous Organization (DAO) - this means that there is no single controlling entity, all activity and underlying code is shared/public, and all decisions are governed by community proposals and voting.

Visit their website at https://reputable.health for more info and early access!

10/05/2021

Do you know your optimal resonance frequency breathing rate? Resonance frequency breathing is a way of breathing (slow relaxed diaphragmatic breathing at around 5-7 breaths per minute) that has a regulating effect on the autonomic nervous system and other key body systems such as the circulatory system and over time can increase heart rate variability (HRV).

We each have our own optimal resonance frequency of breathing, which can be anywhere from 4 to 7 breaths per minute. Here are the results of my most recent self-assessment, showing my optimal inhale/exhale rates were 5.5 / 5.5 (5.5 breaths per minute) and 4.4 / 6.6 (also 5.5 breaths per minute) - these were the rates that generated my highest average HRV numbers. Moving forward, I will use the 4.4 / 6.6 pattern because it “felt” more natural (easiness rating).

Record doing each pattern for 2 minutes and note your average HRV - I used the Corsense sensor and app by but you can also use 's “Moment” feature to capture a 5-minute HRV reading while breathing along to my app .labs Awesome Breathing (link in bio). Rest for 2 minutes, then do to the next breathing pattern.

What’s your optimal resonance frequency breathing rate? Let me know in the comments! 👇

08/31/2021

Congrats to my friend and NeuFit founder Garrett Salpeter on the launch of his new book, The NeuFit Method! 🎉

Garrett has been my go-to expert on physiology and neuromuscular training over the past 8+ years and he’s treated me numerous times. His book is full of insights on applying neuroscience to improve rehabilitation, fitness, and to optimize performance.

Right now it’s only $9.99 on Kindle! https://linktr.ee/quantifiedbob 💪🧠⚡️

01/18/2021

Anyone interested in optimizing their overall metabolic health should start taking a closer look at their metabolic flexibility – the body’s ability to easily shift between using fats or carbs for energy depending on which fuel is most available. https://www.quantifiedbob.com/metabolic-flexibility-lumen/

Using the Lumen metabolism tracker to track metabolic flexibility - the body's ability to shift between using fats or carbs via breath carbon dioxide (CO2)

11/25/2020

Optimizing our (and our loved ones') physical and mental wellness is on everyone's minds these days. With giving season approaching, I have put together a huge list of the best current deals and discounts on:

🔥 Recovery and Performance Tech
🔥 Lab Testing
🔥 Supplements
🔥 Sleep, Activity, Biometric Tracking
🔥 Light Therapy and Blue Light Protection
🔥 Mind and Stress
🔥 Air, Water, Radiation, Indoor Environment
🔥 Biohacking Books and Conferences

👉 Don't miss out on the lowest prices of the year from great companies like SaunaSpace, InsideTracker, ChiliSleep, Troscriptions, Launch Medical, Get-Base, Lumen, BrainTap Technologies, Biostrap, Bulletproof, SuperFat, SafeSleeve, and more! Keep checking back as I will continue updating the list as new deals are announced!

https://www.quantifiedbob.com/biohacking-deals-sales/

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A curated list of the best biohacking deals happening this Black Friday/Cyber Monday holiday season. Supplements, tech, and more discounts!