Exposing your eyes to sunlight in the morning increases daytime energy & mood etc. & improves nighttime sleep, but it also triggers a cascade of short, medium & long-acting peptides & hormones that powerfully modify state of mind & body in other (positive) ways too. *Blink as needed of course; don’t harm your retina. Science can’t satisfactorily fix broken retinas yet… And no, there is no true artificial replacement for sunlight that is as good, but if you can’t view sunlight in the morning then bright artificial light would be your next choice. And don’t forget that there is sunlight on cloudy days. It’s especially important to view that sunlight on cloudy days.