Just 1 minute of red light is effective

[cs3000]

https://pmc.ncbi.nlm.nih.gov/articles/PMC8389381/#sec012

We show that Imidacloprid undermines bumblebee respiration and immunocompetence and that this can be rescued by 670nm exposures of 1min. This positive impact lasts for 4–6 days in both cases and implies that respiration and immunocompetence have common underlying mechanisms that likely resides with mitochondrial integrity.

0.5 mins exposure had no impact. In healthy bumblebees, 1 min exposure increased respiration significantly, but longer times did not result in a further increase (Fig 1B and 1C).
Elevated respiration from single exposures in healthy bees lasted 144h

1 minute of 40 mw/cm2 intensity

Co2 production higher than controls too

And its BEES so another in mammals https://pubmed.ncbi.nlm.nih.gov/26426815/

4 minutes a day stopped the increased immune cell killing of their endothelial cells in diabetic mice

Ray said just a couple minutes, or a quick flash, is enough to help stimulate mitochondria and quench excited electrons that are out of their proper flow

Just shining red light through their head. It restores their mitochondrial oxidation very quickly. - And then it'll continue on its own for a bit without the light? - Yeah, it has a certain momentum before the stress knocks it out again. So about every 10 or 15 minutes having a little flash of light on your body would probably help

Here the momentum lasted 2 hours in humans, stimulates glucose usage / co2 production from 15 mins
https://onlinelibrary.wiley.com/doi/10.1002/jbio.202300521

If you shine just a burst of red light it quenches excited electrons , puts electrons back in the proper arrangement

Within the first hour after exposing frogs to that same intensity of gamma rays, if they shined bright red light on them, they didn't get sick at all.

[LucH]

@cs3000 said in Just 1 minute of red light is effective:

Ray said just a couple minutes, or a quick flash, is enough to help stimulate mitochondria and quench excited electrons that are out of their proper flow

Yes, the right time is fine but too long is counter-productive, not as said in the first link given.
And do not make wrong spare-money when buying the red light.

[DavidPS]

@cs3000 - Even less than just one minute would be one minute every third day.

In the 1st paper that you hotlinked Glen Jeffery, University College London was the last named author. I the first 6 minutes of this video below he speaks about the every third day. I seem to recall from a different video that every 5 days is sufficient to keep the mitos. charged.

https://www.youtube.com/watch?v=BkciTZvR2eY

Edit - The red light works best in the morning.

Dosage, Time & Time of Day for Red Light Therapy | Dr Glen Jeffery Interview Clips

[Mossy]

Does anyone know how much the time would be affected by a 660nm light, versus a 670nm?

[cs3000]

@LucH yeah, also idk about putting a high watt device on skin because of high EMF , maybe 1 meter away is ok if intensity stays high

@DavidPS

Ty looked into more of theirs, just 3 minutes into the eye of 8mw/cm2 (which they said is still more intensity than what sunlight gives at that 670nm red wavelength) boosted color vision for a week
https://www.researchgate.net/publication/356509034

670nm for 2 minutes 40mw/cm2 daily every morning, didnt help reverse age related eye degeneration though https://www.researchgate.net/publication/340403571_A_Pilot_Study_Evaluating_the_Effects_of_670_nm_Photobiomodulation_in_Healthy_Ageing_and_Age-Related_Macular_Degeneration

but yellow + red + near IR (majority 670nm red) at 50 - 80mw/cm2, for 1 minute 30, for 3x a week for 3 weeks, gave a slight vision improvement https://pmc.ncbi.nlm.nih.gov/articles/PMC5484346/

so yeah 3x a week maybe better than daily
seems weird though because you'd be getting red light from the sun daily

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30nm LED at just 3 mW/cm2 at skin level (created 1cm2 light spot on fifth ribs) improved LEF in heart failure mice
10 minutes 7 days a week for 1 week
https://pmc.ncbi.nlm.nih.gov/articles/PMC8674466/#s2

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** extremely low intensity effective over day , 10.1159/000335547
freely moving under 0.042 mw/cm2 red light at surface for 12 hrs a day
showed improved stroke recovery when given for 20 days after induction

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10.1007/s00221-016-4578-8
LED held over mouse head for 90 seconds in parkinsons x2 daily 3 hrs apart, effects lasted for 2 days after use

We have estimated the energy levels reaching the midbrain at 5.3 mW/cm2 SO I guess was at least ~50 mw/cmw at head level

NIr was fast-acting and long-lasting; behavioural improvements were almost immediate following treatment and lasted for several days thereafter.

preventative effect, and faster recovery to baseline (IMMEDIATE RECOVERY FROM A TOXIN)

It should be noted that in the MPTP-NIr (post-treatment) group, the locomotor activity of mice returned to baseline almost immediately after the first NIr treatment on 7d; in fact, these animals were moving more freely around their box within only 20 min after their NIr treatment. The activity of the mice in the MPTP group by contrast was still much lower than baseline over the 2 days post-MPTP injections (45–55 %)
(mptp-nir is delayed until day 7)
*{one group was given nir at same time or before only, and the recovery effect was still there 2 days after}
*We showed that NIr treatment was able to “protect” cells against a toxic insult and limit motor deficits both when applied immediately (within minutes; i.e. simultaneous-treatment) or when applied up to 2 days beforehand (i.e. pre-treatment)

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Just 5 minutes a week (20mw/cm2) increased lifespan, bone size, cartilage amount in aged mice
https://www.sciencedirect.com/science/article/pii/S1011134424001179