I heard he does an hour of vocal warm-ups each day. I’m still amazed at how good live the Stones still are. Being this healthy at 80 doesn’t come easy, and I don’t think he’s done drugs in a while! (Keith Richards quit cocaine and alcohol around 2008 after falling off a tree he was climbing)

Apparently they’ve gone back on this now: https://www.theregister.com/2023/08/08/zoom_ai_legalese_update/