WHITE SULPHUR SPRINGS, West Virginia -- For Tom Brady, author of a soon-to-be-released book on "sustained peak performance," it was the softball of all softballs.

Is it harder for him to train at 40 years old, he was asked after Wednesday's joint practice with the Texans? Does it take him longer to recover?

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"No. I think it’s a lot easier now for me than it’s ever been," he said. "I feel like my routine is better than it’s ever been. When you’re younger you don’t know what to do. After 17 years, going into my 18th year, I know what to do.

"I know how to prepare. I'm never sore. I could practice every day. I could practice twice a day if they’d let us do that, but that’s not the way it goes anymore. It’s just fun being out here competing. That’s what us football players are here for. It’s football season. That’s what football players do – we go out and compete."

Simon and Schuster announced last month that the book will be called "The TB12 Method: How to Achieve a Lifetime of Sustained Peak Performance." The plan is for it to be published in September, and it will be available in hardcover, e-book, and audio editions.

"Oversized, heavily illustrated, revealing yet deeply practical, The TB12 Method is an 'athlete's bible' that reveals Brady's methods and approaches to sustained peak performance for people of all ages," Simon and Schuster said in a release. "In it, Brady tells the backstory that led to the revolutionary approach to his training and exercise regimen, one that decreases the risk of injury while extending peak performance."

The book plans to focus on the importance of pliability, something Brady has discussed more and more in recent years, as well as "strength training, hydration, nutrition, supplementation, cognitive fitness, recovery, and other lifestyle choices" to help readers improve performance as well as their quality of life.

When he makes comments like he did on Wednesday, signaling that life is as easy as ever, it can't hurt sales.