From a FoxNews article, the guy seemed very active and energized after his pro football career. Co-founder of one business, Chief Growth Officer of another plus otherwise keeping fit and active with his family and community youth. A recent quote from Mr Ulrich —

"Keeping up with my four pre-teen sons is the highlight of my life and keeps me on my toes," the portion read. "I also invest my time in helping young athletes in our area reach their full potential through coaching and training — this is one of my true passions. I can also often be found at the gym, where I recently bench-pressed 505 pounds at the age of 40 — the goal-setting doesn’t stop!"

.

https://www.foxnews.com/sports/super-bowl-champ-matt-ulrich-dead