Tom BradyFOXBORO, Mass. — Tom Brady has stayed exceptionally healthy over his 14-year NFL career, and he’s showing no signs of slowing down, even at 37 years old.

The New England Patriots quarterback has missed just 15 games in his career, all of which came in 2008 when he tore his ACL in Week 1 against the Kansas City Chiefs. Brady has been able to maintain his shape, and high quality of play, with hard work in the offseason. He isn’t about to divulge his secrets, however.

“Football is really important to me. A lot of my decisions on a daily basis go into trying to be the best I can for the team,” Brady said Wednesday at Gillette Stadium. “I work on a lot of things over the course of the offseason. I don’t really love to divulge all of those, because I kind of let the opponents try to figure those things out.

“There’s a lot to work on. This game is never perfect, there’s always things you can improve on. I think I’ve made some improvements in some areas this year that we really focused on. We’ll see come Sunday. All talk with no action is not a great thing. I’ve got to go out there and do it.”

Brady has credited his body coach, Alex Guerrero, with helping him improve and maintain his health. Guerrero co-developed Brady’s TB12 Sports Therapy Center at Patriot Place.

“I feel great,” Brady said. “I work hard at it. You try to pay the price in advance. I’ve learned a lot of things over the years that helped me hopefully gain an advantage over all the guys that I play against. I’ll let other people figure those things out because it’s hard to learn those things. Sometimes you’ve got to learn the hard way. I feel like I’m in a good place.”

Brady sported a bushy beard during his news conference, and he said he was channeling his inner Red Sox.