Josh TrentIdentity Transformation Architect and award winning Host of the Wellness + Wisdom Podcast—a decade-strong show with over 750 episodes and 15M downloads.

JUNK LIGHT ☀️Stay away from the window! #bluelight #sunlight #bluelightfilter

19 Jun 2023 · 1 min

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A short advisory segment from a YouTube video by Josh Trent warning that sitting next to a closed window can expose people to "junk light"—sunlight whose spectrum is altered by the glass (blocking UVB, allowing UVA), changing color/frequency and potentially impacting circadian biology. The speaker cites Alexander Wunsch as a leading circadian biology authority and equates closed-window exposure to looking at a laptop, advising to avoid sitting next to closed windows or to open them.

Chapters

People say to me they say oh well I sit next to a window I get lots of lots of natural light. It's not a great idea to be doing that. If the windows closed what's that window going to be doing to sunlight? It's going to be filtering it so you're going to be exposing yourself to junk light Even though it's not from an artificial source the spectrum still going to change uvb, UV A is going to be manipulated you're going to basically blocking UVB letting UVA through the frequencies and the colors of light are going to change. So sitting near a window hypothetically and Alexander Wunsch has said this as well who's the leading figure on circadian biology and in the world he's based in Germany that junk light by sitting next to a closed window is getting up there is equally as bad as looking at a laptop. So try and be away from the window as much as possible or get the window open.