Sciencemadness Discussion Board

Any benefit of exposure to non-UV light or sunlight through window?

MarkoMiletic - 10-8-2021 at 07:16

I know we need vitamin D and perhaps suntan and other benefits of UV from sunlight, mostly for health.
I also know many sources say sun through soda lime glass (common window) is useless for vitamin D, and maybe for tanning.
Does that mean that any indirect, or through glass, or non-UV light is useless and it is same is if we were in complete darkness.
Meanings are there any health benefits of lower than UV wavelength light?
Can artificial light imitate sunlight fully (in health sense)?

[Edited on 10-8-2021 by MarkoMiletic]

Tsjerk - 10-8-2021 at 11:53

https://www.nature.com/articles/s41598-017-11362-2

Fery - 10-8-2021 at 11:59

Strong white light from lamps (so without UV) is used to treat depression too. Sunlight synchronizes internal rhythms, affects the level of melatonin etc.

crestind - 16-8-2021 at 14:13

Not really a chemistry question. More biology, physics and engineering.

Biology is a very underresearched topic, unless there are military applications. The field is called photobiology, and you can find plenty of research on it. Vaguely recall reading about the use of specific colors of light alone to induce plants into growing specific ways, such as longer stems, or more leaves, controlling when they bloom, etc. It is almost certain there is similar effects on animals to be found.

Opacity (electromagnetic) is another useful term to investigate.

[Edited on 16-8-2021 by crestind]

Tsjerk - 16-8-2021 at 14:43

I'm pretty sure there is more research done in molecular biology alone than in chemistry nowadays. Besides that this is not a chemistry forum persé, it is about amateur experimentalism.

Military applications of biology are slim, biological warfare s doomed to go wrong, at least after the colonization of the new world.