I never knew Jeffery had already done studies on light exposure in bees!

A fantastic study showing 670 nm ("near-infrared") light improved the bee’s metabolism (energy consumption, or consumption of sugar).

And the opposite was seen after exposure to 420 nm light (blue).

👇

On 2 December, a couple of days after I had published my post on the honeybee/Faraday cage/Schumann resonance study, the lead author of the recent study on infrared light passing through the human body, Glen Jeffery, appeared on the @hubermanlab.com podcast.

Read the full post here 👉
madsrohde.com/posts/en/hon...

Image 2: Figure from Powner & Jeffery (2022), licensed under CC BY 4.0: “Visible light controls bumblebee haemolymph glucose levels.”

Image credits:

Image 1: An engaged Glen Jeffery at the Huberman Lab podcast in December 2025. Collage by Mads Rohde (2025), CC BY 4.0. Screenshots from the Huberman Lab podcast used under fair use.

I never knew Jeffery had already done studies on light exposure in bees!

A fantastic study showing 670 nm ("near-infrared") light improved the bee’s metabolism (energy consumption, or consumption of sugar).

And the opposite was seen after exposure to 420 nm light (blue).

👇

On 2 December, a couple of days after I had published my post on the honeybee/Faraday cage/Schumann resonance study, the lead author of the recent study on infrared light passing through the human body, Glen Jeffery, appeared on the @hubermanlab.com podcast.

Jeffery (2025) study: doi.org/10.1038/s415...

My description from previous blogpost, in image below.

So the infrared radiation should also be able to reach into the hive and have been important for bees during their evolution (but the infrared radition would on the other hand be blocked to some degree by solid, perforated metal.)

My point of departure for these speculations, was the recent 2025 study by Jeffery and coauthors that have found that sunlight can pentrate deep into the human body, and even all the way through and be measured on the other side of the body.

Did the researched inadvertently also shield bees from infrared light, that bees depend on for normal functioning?

In my first post I speculated if the solid metal Faraday cages, even if perforated, could have blocked vital infrared radiation from reaching into the hive and the bees there.

The article is sparkled with some intriguing questions:
- What about urban beekeepers?🧢🐝
- And can Faraday cages block the Schumann resonances? And also block infrared radiation from the sun, and is that important??🌞

Read full article here 👉 madsrohde.com/posts/en/emf...

This was the first episode.

More will come.

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