Giovanni,
Interesting two references you give. Thank you. The Mazzoleni et al. (2023) article I came across myself a week or so ago and the Voigt et al. (2024) is new to me. Although people have speculated about the link between light at night and neurodegenerative diseases in the past, it seems that in the last few years more significant findings have been appearing. Another angle is the importance of melatonin’s day-night cycle on the health of humans and other creatures and how higher levels of melatonin are protective. I often find it remarkable that evolution has taken advantage of the day-night cycle for the benefit of creatures. Darkness permits the triggering of hormones and other functions that cleanse the system ahead of a new day dawning. Inhibition of melatonin production by light occurs at very different light levels for different creatures. So in my mind, the health arguments are getting stronger in recent years and are much more credible than they were a decade or two ago.