Andrew Huberman· PhD
Pulls out his back pocket this little blue two-pound dumbbell, and he sticks it in my fingertips, and he's like, "Curl it," and I curled up, and I did a wrist curl, and he went, "Roll your hand over." "Okay." "So we can do grip, and we can walk. Here we go," and we did that every single day until I could pressurize my upper body enough to where a sneeze wouldn't cripple me, and then we were straight back in the gym. So I'd walk in double slings. He's like, "The only thing we can do is belt squats, lunges, mobility. That's all we're going to do."