Wouldn't it be nice if we could all be as disciplined as Tim Cook, especially when it comes to secrets and fitness?

The Apple CEO sat for a friendly interview with CNBC's Jim Cramer, on Wednesday, following the company's most recent quarterly earning's report. They covered a lot of ground in the conversation, most notably Cook's declaration that Apple will use some of its astounding wealth to start a $1 billion fund to promote advanced manufacturing jobs in the US.。

At the tail end of the talk, we also got to hear a little bit more about Cook himself -- specifically, how he's used the Apple Watch to fine-tune his fitness routine to help him drop 30 pounds. But don't expect that he'll be sharing anything else about the Watch's sales anytime soon.。

"You know, the Watch has been an incredible move into health, in the wellness and fitness piece," Cook said of the nearly year-old Series 2 after Cramer asked him what life-changing developments Apple might have coming down the pipeline in the future.。

"I've lost 30 pounds, partly [due] to my Watch," Cook continued excitedly. 。

With Series 2, Apple Watch became a full-on health and fitness device, and Cook is well known for his 5 a.m. workouts, so this shouldn't come as much of a surprise.。

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He said the Watch gives him even more incentives to say fit. "Because it motivates you, and it constantly gives you feedback, it constantly gives you rewards.。

"And I'm getting calls and letters from so many people where the watch has made a difference in their life," he continued. "And this is why we are in business. We're in business to help people achieve their objectives, to empower them to do great things."。

Thanks for sharing, Tim! Congrats on the weight loss too, if that's what you were going for. The Watch must be selling pretty well to be affecting so many peoples' lives -- especially if they'd prefer to take the effort to get in touch via old-school letters to you instead of, you know, using the tech they're so excited about to just shoot you an email.。

While you're feeling so friendly, how about sharing some exact numbers driving those Apple Watch sales? It could make that weight loss news look even better -- and hey, it's way less personal, too.。 It could make that weight loss news look even better -- and hey, it's way less personal, too.。

No?

Probably never?

You're still a little salty about all those iPhone 8 rumors?