Jennifer Aniston Wearing a Classic Black Bikini

Actress Jennifer Aniston is not planning to hang up her two-piece bathing suit any time soon. Jennifer Aniston may have confessed that the celeb body she might like to have is that of one Gisele Bundchen…but, I mean: According to her longtime trainer Mandy Ingber, though, Jen does her fair share of work in exercising and eating healthily—but steps it up when she wants to feel especially fit, like for her summer beach vacation just a few days ago with Justin Theroux.

She told US: “Jen’s a very consistent exerciser and eater…. But when she has something she needs to focus a little more on, she just tightens it up a little bit.” And, Mandy says, exercise is a huge part of it for Jen—but it’s not the whole story: “We up the cardio a little bit, if [Jennifer’s] looking to sort of trim down…. So we add a little more cardio to the yoga, but also what she puts into her body is essential. That really is 80 percent of it…it’s not a big deal if you have a bite of this or that if you are mostly eating well.

” I’ve heard this last bit from a bunch of experts, actually—working out is super important in getting fit, but what you eat plays a big. Jennifer Aniston is one of those celebrities who doesn’t seem to age. The Friends actress is constantly being photographed in a bikini and there hasn’t been a single time where she hasn’t looked absolutely flawless.