The quotes were intended to differentiate between the obvious, instantaneous brain damage from head trauma and the long-term, hard to measure effects of an unhe

The quotes were intended to differentiate between the obvious, instantaneous brain damage from head trauma and the long-term, hard to measure effects of an unhealthy, sedentary life-style has on the brain. I was trying to point out that we are overly focused on the easily measured (negative) effects. His life-style also had positive effects, but they were not instantaneous. Knowing what led him to suicide is infinitely more complex that asking "how many times did he bonk his head?".