Part of being in a healthy relationship is feeling motivated to overhaul any lingering bad habits. And fans think that's the case with Ben Affleck's rekindled romance with Jennifer Lopez.

The 48-year-old star is looking a bit haggard these days, while J. Lo, at 51, is looking better than ever. Fans think that this new-old relationship will have a positive impact on Ben's health, though; here's why.

Will Ben Affleck Quit Smoking?

He's apparently tried before, but quitting smoking is something Ben Affleck clearly needs help with. Though no one would blame him for spiraling after his marriage ended and life got tough, maybe there are brighter days ahead.

After all, he was recently spotted on a public date, cuddling up to Jennifer Lopez. And everyone knows that J. Lo is as healthy as they come, and she doesn't have time for bad habits.

Will Jennifer Lopez Push Ben Affleck To Quit Smoking?

Rumors suggested that the last time Ben quit smoking, it was his then-wife Jennifer Garner who helped him kick the habit. But once the pair split, he headed down an unhealthy path again.

While he did seem happy enough during his romance with Ana de Armas, Affleck was still photographed smoking while seeing the actress. Clearly, the bad habit won't die easily, but fans think that Jennifer will really push Ben to get healthier.

How? Well, for anyone who's looked at Jen lately, the answer is pretty clear.

Jennifer Lopez Hits The Gym Daily

Jennifer Lopez and Ben Affleck have already been spotted canoodling at the gym in recent days, and that's proof enough to fans that J. Lo has her guy on a new regimen toward better health.

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Fans speculate that just to keep up with Jen on the treadmill, Ben will have to ditch smoking (and a few pounds). He's been in literal fighting shape before, but most recent photos show him looking a bit rough around the edges (with a cigarette in hand).

For a true transformation back to health, fans say Ben will have to stop smoking and hit the gym just as hard as his second-time beau. Fans agree there's literally no way that Ben will be able to keep slacking around while Jennifer hits up the gym for hours per day.

Though at this early honeymoon stage, Jennifer's been seen enjoying meditation while Ben enjoys a smoke break, fans say it can't last long. After all, Jennifer and her ex shared a penchant for fitness, and that wasn't enough to keep them together.

If Ben wants things to work out with Jennifer this time, he might need a few more tricks than just wearing an old gift of hers on their dates. Getting serious about his health is the number one way to stay in Lopez's good graces, fans suggest -- and it's not like it'll hurt Ben to try!

NEXT: Everything We Know About Jennifer Lopez And Ben Affleck's Rekindled Romance