How is Marquez able to be so coherent at this stage in his career?

man i swear i wondered the same thing! jmm like chavez just a tough hard head muf-cka. one of the greats. we all know fighters that weren't the same after pacquiao or floyd, he fought them both and still going strong!

it all boils down to the hot piss he drinks.... on a serious note, thats what happens when you develop yourself to be a real technician.....

everyone's different and symptoms can develop way after when he retires. JCC looks fine and he has been in much grueling wars than Marquez. ^^^True. I'm not sure, but I think I once read/saw somewhere that Chávez had a thick skull. So that might have to do with the brain not getting rattled around so easily... He looks/sounds completely fine considering how many wars he was in...

everyone's different and symptoms can develop way after when he retires. JCC looks fine and he has been in much grueling wars than Marquez.