Foundational paper 004 - Why a water scientist became The Hygiene Scientist

I got tired of cleaning hacks with no explanation. That's where my online name came from, along with three questions that actually work.

Oct 24 • Dr. Luisa | Hygiene Scientist

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September 2026

Field observation 008 - The five systems that held you up before you noticed

You are somebody's invisible system right now. You probably have no idea.

Sep 16 • Dr. Luisa | Hygiene Scientist

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July 2026

Field observation 007 - The four sanitation blind spots that show no symptoms

One of my dogs got sick from a new bag of kibble. The other two, who never touched it, were fine.

Jul 24 • Dr. Luisa | Hygiene Scientist

Field observation 006 - What if it's yes?

What I learned at the Diana roundabout about the one question that decides whether you build or give up.

Jul 2 • Dr. Luisa | Hygiene Scientist

May 2026

Case study 005 - Who am I when I belong nowhere

A question Fernanda Peñaherrera had to answer twice before turning 24. The second time she had a system.

May 27 • Dr. Luisa | Hygiene Scientist

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Case Study 004 - Who am I when the titles are taken away

A question Catalina González Calle asked herself in Saudi Arabia. The answer became a system.

May 19 • Dr. Luisa | Hygiene Scientist

Field Observation 005 - What you lose when you don't invest in resilience

Five panelists, none coordinated, described the same pattern. I watched it show up on my own notepad.

May 16 • Dr. Luisa | Hygiene Scientist

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Case Study 003 - The spoon that took several R&D years

Rodrigo Jiménez took eight years to make Polymeron's first biodegradable spoon. What sustained him was not venture capital.

May 12 • Dr. Luisa | Hygiene Scientist

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Foundational Paper 003 - What the cruise was never designed to handle

The cruise protocol was designed for the norovirus of the 1970s. The hantavirus on the Hondius arrived in 2026. Piece 2 in the series on invisible…

May 10 • Dr. Luisa | Hygiene Scientist

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Case Study 002 - The question that reveals where your business needs you

Hassan Bash has been asking his founder clients one question for years. The answer almost always surprises them.

May 5 • Dr. Luisa | Hygiene Scientist

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Foundational Paper 002 - The invisible infrastructure that decides whether your child gets sick this week

A daycare with hundreds of children was spending the same on cleaning as an average household. This is what we found about why hygiene systems fail in…

May 3 • Dr. Luisa | Hygiene Scientist

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April 2026

Case Study 001: What sustains a founder when purpose is not enough

Esteban Canepa, a Mexican entrepreneur who has spent 10 years building in Saudi Arabia. This is what he discovered about the days when purpose is not…

Apr 28 • Dr. Luisa | Hygiene Scientist

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