Welcome to Shit-Head (pronounced Shih-TEED, thankyouverymuch) Fitness! Thank you for filling out your online application. Now we'll see if you're really fit to become true Shit-Heads. (This is based on my own gym experiences over the past 18+ years. If you don't wish to be considered a Shit-Head in real life, please don't do these things.)
To listen while using other apps, switch the player to Picture-in-Picture (PiP) during playback — it keeps playing in a small floating window (the screen stays on).
To listen with the screen fully off, in-browser playback stops by YouTube's design. Open the video in the YouTube app to keep listening where background playback is supported (e.g. with YouTube Premium).
Open in YouTube app