There is a whole book on the ill effects of too much light in modern times -- Lights Out (https://www.simonandschuster.com/books/Lights-Out/T-S-Wiley/9780671038

There is a whole book on the ill effects of too much light in modern times -- Lights Out (https://www.simonandschuster.com/books/Lights-Out/T-S-Wiley/9780671038687 https://www.simonandschuster.com/books/Lights-Out/T-S-Wiley/...)