https://www.webmd.com/skin-problems-and-treatments/red-light...
I guess the new LED bulbs miss a lot of frequencies that were present in incandescent (black body radiation) bulbs. I wonder if we'll see a bunch of "light frequency deficiency" diseases arising as a result.
The more panacea it is, the more woo it probably is, eh?
[Edit: NB. Nitric Oxide is produced in the paranasal sinus cavities[1], and when inhaling through the nose it gets drawn into the body. It appears to be involved in arterial flexibility, increasing blood flow, decreasing blood pressure, immunity, neurotransmission, and relatedly treating erectile dysfunction. Humming appears to increase the production of Nitric Oxide[3]. Maybe the red light up the nose just makes you breathe through your nose?]
[1] https://thorax.bmj.com/content/54/10/947
[3] https://www.atsjournals.org/doi/full/10.1164/rccm.200202-138...
Physical evolution does not keep up so well with modern society's pace of change and understandings therein.
I've started doing the 10,000+ steps for a couple of years, and yes there does seem to be a difference to my health and energy.
Our bodies are a bit dumb in this, albeit with good intentions - momentarily preserve energy, make body weaker long term. It made sense in the past though, otherwise we wouldn't be probably here.
Indeed, we are all stone age hardware trying to run modern software.