After years of hauling 80-100 pound speaker cabinets and living off adrenaline...

https://smoothdecorator.com/why-does-my-posture-get-worse-on-tour/

After years of hauling 80-100 pound speaker cabinets and living off adrenaline until 2 or 3 a.m., musicians develop a kind of body awareness you won’t find in a gym