Quantified Bob

💻📊💪 Data-driven personal optimization. Biohacking, citizen science, self-quantification. Wellness, longevity, human performance, aka @BobTroia

[Quantified Bob @QuantifiedBob]

Are you using peptides? If so and you are doing your own peptide reconstitution, PepCalc will save you a ton of frustration!

[Bob Troia @BobTroia]

3 years ago, most people had never heard of peptides. Now they’re becoming mainstream.

At the time, @GollyJer and I got tired of spreadsheets and messy calculations every time we needed to prepare research peptides for reconstitution. So we built PepCalc to make life easier - it is now the most reviewed and trusted peptide calculator app in the world!

- Instant exact measurements, multi-peptide blends, and saved protocols, all without the guesswork.

- Constantly improved based on real feedback. Private, no signup required, and no ads.

[Quantified Bob @QuantifiedBob]

The notice was sent to Cloudflare (DNS provider) who then forwarded it to my hosting provider. Even of it was an honest misunderstanding, you see how easy of a malicious attack vector it can be to harm any website - go after domain registrar/DNS, then hosting provider, etc.

[Quantified Bob @QuantifiedBob]

For years I've featured Tru Niagen(R) on the Resources section of my website as a supplement I recommend. I was actually promoting their product. Today I received an AI bot generated DCMA copyright notice? @CharlesMBrenner @truniagen

[Quantified Bob @QuantifiedBob]

Looks like @function no longer requires 2 separate visits (spaced about a week apart) at Quest Diagnostics to complete all of the comprehensive blood draws?

[Quantified Bob @QuantifiedBob]

Well, this didn't age well... #longevity

[Quantified Bob @QuantifiedBob]

Buyer beware! 🚨

[Bob Troia @BobTroia]

🚨 Buying supplements on Amazon? You might not get the bottle from the brand/seller you clicked.

Why: Amazon product "commingling" can pool multiple sellers' "same" product under one barcode → Amazon ships the nearest unit (could be counterfeit/expired).

Impact:
⚠️ Buyers: higher risk of bad product
⚠️ Brands: knockoffs → 1⭐️ reviews & lasting listing damage

✅ Amazon says commingling ends for inventory shipped on/after Mar 31, 2026 (seller-traceable stock).

Tip: check "sold by" and always prefer brand storefronts/authorized sellers!
https://t.co/cZVmGZ1NrN

[Quantified Bob @QuantifiedBob]

2026: "D!ckbait" is the new clickbait! 🤣😱

[Quantified Bob @QuantifiedBob]

@bryan_johnson Well, if you can't finish your "business" in under a minute, there's already an issue..

[Bob Troia @BobTroia]

@bryan_johnson Yep, I did some n=1 experiments a decade ago demonstrating the impact of cross-country air travel on blood glucose! https://t.co/9xWx80Yz7C

[Quantified Bob @QuantifiedBob]

Me: currently 4x/day

[Bob Troia @BobTroia]

GM! Starting my week with some vibration + red light followed by adaptive contrast oxygen training 💪📊

[Quantified Bob @QuantifiedBob]

@DrAndyGalpin Care to name any names?

[Quantified Bob @QuantifiedBob]

People obsessed about microplastics getting into their 🍆 but ignore all of the radiation they are getting exposed to flying in planes across the country ✈️☢️

[Bryan Johnson @bryan_johnson]

I’m in D.C. for a thing. Packing my longevity for travel is a lot. A pair of underwear and toothbrush would be so much easier. Sometimes I think you’re right and this whole thing has gotten out of control and I need to chill.

[Quantified Bob @QuantifiedBob]

@mikefutia SORA

[Quantified Bob @QuantifiedBob]

@bengreenfield Baby-faced @hubermanlab!

[Bob Troia @BobTroia]

Aw, I just enabled the Blood Pressure Insights feature on my @WHOOP MG today and they were just told by the FDA the feature must be reviewed as a medical device in the US 😡 https://t.co/P41doJIXeV #digitalhealth

[Quantified Bob @QuantifiedBob]

Could magic mushrooms hold the secret to a longer life? New research shows psilocybin (found in psychedelic 🍄) may extend cellular lifespan and boost longevity in aged mice! This natural compound could be a game-changer for healthy aging. Thoughts? https://t.co/SZJOUoHq0A

[Quantified Bob @QuantifiedBob]

Sounds like a "feature", not a "bug"! 😉 (if you aren't trying to reproduce)

[Bryan Johnson @bryan_johnson]

Sauna heat devastated my swimmers.
Seems icing the balls is a good idea.

No ice protection on the boys:
+ 54% drop in motile count
+ 57% drop in motility
+ 55% drop in normal morphology

Conversely, my fertility markers improved from my pre-sauna baseline after 27 sessions with ice on the boys:

+ total motile count ↑ 57%
+ concentration ↑ 26%
+ motility ↑ 16%,
+ morphology ↑ 15%

This aligns with the evidence. Human testes operate 2-4°C cooler than core temp. Even a +2°C rise (from sauna, hot tubs, laptops, etc.) can derail spermatogenesis for 74-days, the length of a full spermatogenic cycle.

What studies show:

+ A single sauna or hot bath at 80-90 °C can drop progressive motility 40-60% two months later.

+ Scrotal cooling devices used in varicocele (overheated testicles from enlarged veins) treatment restore sperm health within 90 days.

A future question we want to address: did my sperm biomarkers improve because of the combination of sauna and ice pack? Or would an ice pack alone deliver similar results?

My sauna protocol is 20 min daily at 200°F.

[Bob Troia @BobTroia]

Back in the day I had to build my own Arduino-powered indoor air quality monitor because there weren't really any consumer options

[Quantified Bob @QuantifiedBob]

What are your go-to fitness tracker(s)?

[Bob Troia @BobTroia]

Picked up an Apple Watch Series 10 for just $300 during Prime Day - going to put it through its paces vs. Oura Ring and Whoop! 👉 https://t.co/OtMBuIPvRs #affiliate