DJs and producers often push through the 4 AM body clock slump, juggling...

https://mylesjnqb962.iamarrows.com/how-do-i-use-light-exposure-to-survive-late-sets

DJs and producers often push through the 4 AM body clock slump, juggling late-night sets with early flights. One common scene: sunglasses on the ride back after a 9 AM flight, trying to reset their rhythm