This was a discipline session, not a performance session. High work stress bled into the body — legs and energy were flat. Missed the morning window and had to force it mid-day during a stressful workday. Despite the subjective grind, the numbers tell a different story: 138 bpm average is right in the Zone 2 window. The body executed aerobically even when the mind didn't want to be there. That's conditioning doing its job. No neurological symptoms before, during, or after. Clean session from a TBI perspective.