2 ms·
Glass blocks UVB. It doesn't block UVA, which is the light that is positively correlated with sleeping patterns. https://hps.org/publicinformation/ate/q12082.h
by chrisseaton 5y ago
Glass blocks UVB. It doesn't block UVA, which is the light that is positively correlated with sleeping patterns.
https://hps.org/publicinformation/ate/q12082.html https://hps.org/publicinformation/ate/q12082.html
https://bmcdermatol.biomedcentral.com/articles/10.1186/1471-5945-2-6 https://bmcdermatol.biomedcentral.com/articles/10.1186/1471-...