He discovered he was gluten and caffeine sensitive.
Gut health was the first thing he noticed. Cut out fast food and noticed his gut health greatly improved. Huge change. He increased water intake and reduced bloating. With improved gut health he also was able to improve his work output. He had increased productivity, more focus, less need for bathroom breaks, and overall more energy. No longer suffers from migraines and headaches. Attributes his success to Time Advantaged Eating.