# circadian (blogs) — RSS Amplifier Recent posts from the 2 feeds in the RSS Amplifier directory that cover circadian. Page: Feed: --- ## [Normal ferritin labs don't mean anything (let me explain)](https://sarahkleinerwellness.substack.com/p/normal-ferritin-labs-dont-mean-anything) _2026-08-10 · Sarah Kleiner · Sarah Kleiner_ Plus the link to our Substack Subscriber Zoom tomorrow & a brand new video I don't want you to miss! ## [Two Things Everyone With a Ferritin Problem Should Rule Out](https://sarahkleinerwellness.substack.com/p/two-things-everyone-with-a-ferritin) _2026-08-08 · Sarah Kleiner · Sarah Kleiner_ My personal update, why this isn’t as complicated as some people want it to be (and why it’s also not as simple as others want it to be) ## [Second edition of THE LIGHT DOCTOR is here!](https://lightdoctormartinmooreede.substack.com/p/the-second-edition-of-the-light-doctor) _2026-08-05 · Dr. Martin Moore-Ede · THE LIGHT DOCTOR newsletter by Dr. Martin Moore-Ede_ Updated with the latest science and health solutions and expanded from visible light into ultraviolet and infrared. PLUS a special offer for Substack subscribers. ## [The Sunshine Protection Act Is Going to Raise Obesity Risk for Millions, and This Is Not a Debate](https://sarahkleinerwellness.substack.com/p/the-sunshine-protection-act-is-going) _2026-08-01 · Sarah Kleiner · Sarah Kleiner_ The real problem with dark mornings & your metabolism, and why a light box won't fix it ## [Substack Digest: Varicose Veins, Ferritin Diaries, and Why Light Boxes Don’t Work Like You Think](https://sarahkleinerwellness.substack.com/p/substack-digest-varicose-veins-ferritin) _2026-07-25 · Sarah Kleiner · Sarah Kleiner_ Saturday digest - updates & musings of surviving in the digital world ## [Reflect Orbital: Despite protests FCC fails to block harmful light at night](https://lightdoctormartinmooreede.substack.com/p/reflect-orbital-despite-protests) _2026-07-15 · Dr. Martin Moore-Ede · THE LIGHT DOCTOR newsletter by Dr. Martin Moore-Ede_ Federal Communications Commission allows satellite company to put mirrors in space to reflect the sun's rays onto the earth at night ## [They are calling this "The Sunshine Bill" - here's why we need to stop it ASAP (and how)](https://sarahkleinerwellness.substack.com/p/they-are-calling-this-the-sunshine) _2026-07-15 · Sarah Kleiner · Sarah Kleiner_ permanent daylight saving time is a permanent health problem ## [The Overlooked Hair Loss Hormone That Hits You Way Harder in Midlife (And It's Not Estrogen or Thyroid)](https://sarahkleinerwellness.substack.com/p/the-overlooked-hair-loss-hormone) _2026-07-10 · Sarah Kleiner · Sarah Kleiner_ Light - Stress & Melatonin - looking beyond the usual suspects.... ## [The hidden cost of getting your vitamin D from a pill (and zoom link for tomorrow's subscriber Q&A)](https://sarahkleinerwellness.substack.com/p/the-hidden-cost-of-getting-your-vitamin) _2026-07-07 · Sarah Kleiner · Sarah Kleiner_ The study that highlights why you can't rely on pills and the cost of doing so... ## [Expectant Mothers Beware: Evening Blue-Rich Light will Harm your Baby](https://lightdoctormartinmooreede.substack.com/p/expectant-mothers-beware-evening) _2026-07-01 · Dr. Martin Moore-Ede · THE LIGHT DOCTOR newsletter by Dr. Martin Moore-Ede_ Maternal blood glucose levels, elevated by blue-light exposure, cause overweight unhealthy babies ## [Licensed Dispensaries, Pay with Crypto (Sponsored)](https://crawlproof.com/a/xGfa8sAyHDaA) _2026-07-01 · **Sponsored**_ Search verified licensed dispensaries and pay with Bitcoin, Lightning, or stablecoins. ## [Wellness Perfection that Makes people quit - Circadian Biology Series](https://sarahkleinerwellness.substack.com/p/wellness-perfection-that-makes-people) _2026-06-27 · Sarah Kleiner · Sarah Kleiner_ Part One: "If you don't see the sun come over the horizon, you don't get the true benefit." ## [Ferritin of 9, and a Doctor Who Said I Was “Fine” (Update)](https://sarahkleinerwellness.substack.com/p/ferritin-of-9-and-a-doctor-who-said) _2026-06-23 · Sarah Kleiner · Sarah Kleiner_ A two-week update on getting to the bottom of my own labs, and why I think I have held onto my hair ## [What's a realistic vitamin D level if you don't want to take supplements?](https://sarahkleinerwellness.substack.com/p/whats-a-realistic-vitamin-d-level) _2026-06-18 · Sarah Kleiner · Sarah Kleiner_ It's likely lower than what the functional medicine world preaches (and I'll explain why that might not be an issue & show you my labs) ## [Blue-Pump LED Lights are a Massive Uncontrolled Experiment on the Human Race](https://lightdoctormartinmooreede.substack.com/p/blue-pump-led-lights-are-a-massive) _2026-06-16 · Dr. Martin Moore-Ede · THE LIGHT DOCTOR newsletter by Dr. Martin Moore-Ede_ Completely ignoring health concerns, the world switched on harmful artificial LED lights ## [The Evidence is Clear: Care Homes Should be Lit with True Circadian Lighting](https://lightdoctormartinmooreede.substack.com/p/the-evidence-is-in-care-homes-should) _2026-06-02 · Dr. Martin Moore-Ede · THE LIGHT DOCTOR newsletter by Dr. Martin Moore-Ede_ Seven clinical trials show substantial and widespread benefits for Alzheimer’s patients ## [Is Outdoor Daylight Good for Arthritis? It Depends on the Type of Arthritis](https://lightdoctormartinmooreede.substack.com/p/is-outdoor-daylight-good-for-arthritis) _2026-05-15 · Dr. Martin Moore-Ede · THE LIGHT DOCTOR newsletter by Dr. Martin Moore-Ede_ Osteoarthritis is improved by daylight exposure, but Rheumatoid Arthritis risk is increased by too much daylight ## [When is Green the Circadian Signal?](https://lightdoctormartinmooreede.substack.com/p/when-is-green-the-circadian-signal) _2026-04-30 · Dr. Martin Moore-Ede · THE LIGHT DOCTOR newsletter by Dr. Martin Moore-Ede_ It is time to modify the Melanopic EDI standard ## [The Ageing Eye is Incompatible with Conventional LED Lighting](https://lightdoctormartinmooreede.substack.com/p/the-ageing-eye-is-incompatible-with) _2026-04-15 · Dr. Martin Moore-Ede · THE LIGHT DOCTOR newsletter by Dr. Martin Moore-Ede_ 450 nm blue pump LEDs do not adequately illuminate the elderly eye ## [Rethinking Windows: Regaining Access to Healthy Indoor Light](https://lightdoctormartinmooreede.substack.com/p/rethinking-windows-regaining-access) _2026-04-02 · THE LIGHT DOCTOR newsletter by Dr. Martin Moore-Ede_ Modern "energy efficient" windows cocoon us in an indoor world of spectrally-deficient light ## [Countdown to Getting Paid (Sponsored)](https://crawlproof.com/a/yMlPtrpXCkrb) _2026-04-02 · **Sponsored**_ Create a shareable wallet timer — deposits buy back time and pay debt down ## [Fear of Skin Cancer Will Reduce Your Lifespan](https://lightdoctormartinmooreede.substack.com/p/fear-of-uv-induced-skin-cancer-reduces) _2026-03-19 · Dr. Martin Moore-Ede · THE LIGHT DOCTOR newsletter by Dr. Martin Moore-Ede_ Avoiding the sun causes 100 deaths from heart disease, cancer and other causes, for every skin cancer death prevented.