You already do the "right" things. You sleep close to eight hours. You eat reasonably well. You might even track your steps, your HRV, your macros.
And you still feel tired by 2pm. Still wake up groggy. Still scroll your phone in bed wondering why "good habits" aren't adding up to the energy you expected.
Here's what almost nobody tells you: the house you live in might be the biggest variable you've never audited.
Modern homes are accidentally built to work against your body's internal clock. Small windows facing the wrong direction. Bedrooms that never get fully dark. Overhead lighting that keeps you in "daytime mode" long after sunset. None of this is anyone's fault — it's just not what homes were ever designed for.
The result: two people can sleep the exact same eight hours and have wildly different energy the next day, depending entirely on the light, darkness, and rhythm their home gave them overnight.
Live By Light is a clear, no-fluff guide to the science of circadian-aligned living — built on the mitochondrial research of Dr. Martin Picard (Columbia University) and the light-and-environment framework of neurosurgeon Dr. Jack Kruse — translated into plain language and, more importantly, into what it actually means for your home.
This isn't another generic "10 sleep tips" PDF. It's the specific mechanism behind why your energy, sleep, and long-term health are so tightly linked to the light and darkness inside your own walls — and a practical framework for fixing it, whether you're staying put, renovating, or house-hunting.
What's Inside:
How your body's master clock actually works, and why light is the strongest signal you can give it
The real, research-backed link between circadian rhythm and cellular energy — why "enough sleep" doesn't always equal "enough rest"
The four everyday habits quietly working against your biology (and the small adjustments that undo them)
An honest breakdown of the "quantum health" conversation — what's backed by solid evidence, and what's still speculative, so you're never oversold
A room-by-room look at what a circadian-aligned home actually looks like
A practical checklist to use on your next home tour, renovation, or custom build
You're already health-conscious and want the next level of optimization most people never think about
You're planning to buy, build, or renovate in the next 6–18 months and want to make smarter decisions
You've tried the supplements and the sleep apps, and you're ready to look at the actual environment you live in
The full Live By Light guide (a $47 value on its own) — included
Room-by-room circadian home checklist — included
Buyer's / renovation checklist for your next walkthrough — included
Instant digital download, read on any device — included
BONUS: The 7-Day Circadian Reset Tracker ($17 value) — included
Today: ONLY $27
NO. THIS IS NOT MEDICAL ADVICE. This is educational content about circadian science and home design. Always talk to your physician about any personal health condition.
A digital guide you can read instantly on your phone, tablet, or computer — no waiting, no shipping.
Yes. Most of the guide is about the daily habits and home adjustments you can make right now, wherever you live. The buyer's checklist is a bonus for whenever you are ready.
Yes — after your purchase, you'll receive a BONUS and have the option to join our membership community for access to our newsletter, events and educational sessions.