https://xitter.twitterapi.xyz/t.co/C29dd0Anou Light is the original condition.
Joined January 2026
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CHROMA retweeted
SUN YOUR UTERUS. Most women spend time red-lighting their face, but rarely think about their pelvis. The uterus isn't sterile. It has its own microbiome. It contains one of the highest concentrations of vitamin D receptors in the body. And the egg, the very beginning of life, is one of the most mitochondria-rich cells we have.
Whether that's morning sunlight or the thoughtful use of red light device, we're only beginning to understand how important light is to female reproductive biology.
This is my Fertility Terrain Method principle.
CHROMA retweeted
The real tragedy, besides the human health cost, to creating a society that uses conventional LEDs 24/7 is the loss of ambiance
Places no longer have a character because the lighting has gone to shit
CHROMA retweeted
We got you...
Launching soon!
3 Mode Bulbs:
Daytime white (strong circadian signal for focus)
A rich deep amber for the evenings
Pure red at night
CHROMA retweeted
When travelling this device has been a game changer
SkyPortal mini from @getchroma
- 480nm boosted light during the day to get the proper circadian stimulus
- Blue light free mode at night to keep your hotel room circadian for good 😴
Jet lag be gone!
Light = focus
CHROMA retweeted
The more consistent your circadian habits, the less one slip wrecks you.
Consistency is like an armour that gets better with time.
CHROMA retweeted
sunlight increases longevity. forest walking lowers blood pressure. touching grass lowers inflammation. the ocean reduces depression. playing in dirt boosts immune function.
nature is not optional.
youre not sick. youre just nature deficient.
CHROMA retweeted
You can even see this in a variety of studies:
People with high Vitamin D are healthier
But you can't replicate the effect with Vitamin D supplementation
Why? Because it's just a lab marker for your sun exposure.
it’s all so tiresome
vit D is a *proxy* for UVB exposure @bryan_johnson
what you want is POMC signaling and its subsequent immunomodulatory peptides
CHROMA retweeted
One trick to really appreciate what we build, is to buy basically anything else in the light therapy space first.
You'll notice most all lights (even those marketed as SAD lamps!) feel like a lot like the light you're already living under. This is because they often ARE fundamentally the same spectrum.
Common marketing terms in light therapy have no set definition... "full spectrum" "circadian friendly" "clinical grade!"
A light that switches from cool white, to warm white in the evenings is visually nice, but neither spectrum matches what your biology expects, day or evening. They understimulate during the day, and overstimulate in the evenings. It's directionally correct, but lazy execution.
There's only so much power that can be pushed through a given fixture... every peak and dip in the spectrums of what we produce is an intentional tradeoff.
Try our Sky Portal 2.1 for 100 days, send it back if you're not convinced. (We have a 0.6% return rate on these, almost everyone loves them.)
Our 3 channel bulbs are coming soon...
Daytime white - boosted Violet & Cyan (main circadian drivers), boosted Deep Red & touch of NIR, (for spectral balance), dramatically reduced blue light hazard (we scooped out the dark blue we're already chronically overexposed to from screens)... significant circadian stimulation while staying comfortable on the eyes and brain!
Deep Amber - the same Deep Amber spectrum from our Sky Portal 2.1 light. Minimal circadian stimulation, only about half as stimulating as candlelight of the same brightness. More than half of the output is 630nm red or longer wavelengths. Comfortable to work and live under in the afternoon/evenings, colors still render.
Deep Red - monochromatic red, for late nights. Nearly zero circadian stimulation. Do what you need to do, then fall asleep easily.
Of course, we use true constant current drivers. This would all be theater if our lights flickered.
CHROMA retweeted
Across multiple large trials at different dosages, exogenous Vitamin D shows ZERO benefit for reducing all cause mortality
That’s all you need to know that hyper-reductionist gimmicks like a Vitamin D pill should never be lumped into the same category of circadian aligned UV-B exposure from the full spectrum
Your body is unfathomably sophisticated
Vitamin D is a seasonal circadian hormone with 20+ different metabolites, and other byproducts, that is way too complex for the games of Western scientific reductionism
Vitamin D pills are not a replacement for the sun. For instance, there is no nitric oxide production from taking vitamin D pills. So much of what we have been hearing, even from the so-called alternative medical/integrative medical systems, is only partial truth. Sunlight is always better. If you think you need pills, go get a blood level and if it is severely deficient and you can't get to the sun then supplement. But know you're only getting part of the benefit. If you are vitamin D sufficient, taking pills is not going to help you.
CHROMA retweeted
Modern indoor environments are the anomaly.
Standard white LEDs peak at ~450nm with very low output above 660nm and below 420nm. We're starved for these bands... 100-1000x dimmer overall too.
Don't fear getting "too much" light. We're built for it.
getchroma.co/blogs/learn/we-…
CHROMA retweeted
Can the light leaking into your bedroom at night raise your Type 2 diabetes risk more than moderately bad genetics?
This Lancet study (UK Biobank, 84,790 people, 13 million hours of wrist light sensor data) says yes it effing can.
Brighter nights = higher diabetes.
Here are the exact numbers (fully adjusted for age, sex, lifestyle, income and even polygenic risk score):
Darkest nights (0-50th percentile): baseline risk
50-70th: +29% risk (HR 1.29)
70-90th: +39% risk (HR 1.39)
Brightest nights 10%: +53% risk (HR 1.53)
Your circadian amplitude and phase mattered too. Unnatural light timing = higher diabetes.
The mind blowing part is that night light was independent of genetic risk.
The jump from dark to bright nights was roughly the same risk increase as going from low to moderate genetic risk for T2D.
What this means for you is that you can literally outrun bad genes by keeping your nights dark.
This is one of the main reasons the Blue Light Diet was created over a decade ago.
So here's a general protocol to get this done if you still want to live a modern, big city life......
→ Blackout curtains + night coded light bulbs and red or flux filtered screens after sunset.
→ No blue light 3-4 hours before bed.
→ Phone in redshift mode.
(see all recs in replies below)
From the paper....."Avoidance of light at night is “a simple and cost-effective recommendation that mitigates risk of diabetes, even in those with high genetic risk.”
