Kendall Jenner in Bathing Suit Says "I'm More at Peace"

Kendall Jenner is dressed to thrill! The 26-year-old supermodel and entrepreneur showed off her famous curves on the brand new cover of i-D, in which she discusses her life in the spotlight. "I'm just a lot more at peace with things now," she tells the outlet. "It's hard to explain… it's just something that you learn to live with, I guess." How does she keep herself so fantastically fit? Read on for 8 of Kendall Jenner's top tips for staying in shape and the photos that prove they work—and to get beach-ready yourself, don't miss these essential 30 Best-Ever Celebrity Bathing Suit Photos!

If you want to get into shape a la Kendall, you better go hard. "I'd go to my trainer, then I'd go for a run a couple hours later," she told People about her intense training sessions for a Victoria's Secret Fashion Show. "I worked out so hard for that, like, literally every single day — sometimes twice." "I think I feel really good mentally when I feel really good physically," she tells i-D in the new interview.

Kendall's workouts usually focus on old school strength training and cardio. One of the trainers she has worked with, Autumn Calabrese, revealed to Us that the model does hour-long workouts three to four times a week. A simple push up can make all the difference. "Place your hands on the floor about shoulder width apart, and extend your legs so your weight is balanced on your hands and toes," says trainer Mark Langowski. "Your body should form a straight line from head to toe. Inhale as you bend your elbows to lower yourself until your chest is almost touching the floor, then exhale as you straighten your arms and push your body up until your arms are straight. (If you cannot do a push up on your toes, do as many as you can from your toes and then complete the remainder from your knees. You should be able to gradually do more during each workout.) The key with pushups is to keep your core tight and think about pushing the ground away from you."

Eat healthy, most of the time, is Kendall's diet methodology. While the majority of her eating is clean, she has one go-to cheat food: Fritos Chili Cheese. "Ever since I was a kid [they're] the only chips that I truly love and will eat all the time. They're really bomb," she told People. 

Kendall has one favorite form of cardio. "I love running outside," she told People. "You can go on a run on a treadmill but it's really not the same. I used to be the most athletic kid. I was always outside. I was super outdoorsy running around in the mud and doing that kind of stuff. I don't do that ever [now]. You're always like stuck inside, you're always in a gym, or you're always in your phone or whatever. So to actually to get outside and run outside … I enjoy it."

It's all about self-motivation, Kendall says. "Sometimes when I'm watching TV, I think to myself, 'I should be doing crunches and sit-ups right now,'" she wrote on her no-longer-active blog per Byrdie. "Then I get off the couch and do it."

"People will find it hard to believe, that girl squats, dead-lifts and does pull-ups," Kendall's trainer Gunnar Peterson once said. Here's a superset that will get you results, from trainer Langowski:

Standing Isometric Squat Row: 12 reps

Stand in front of a cable machine with a seated row attachment. (You can also use a resistance band attached to a something solid.) Set the resistance to about ¼ of your body weight. Hold the handle with both hands and bend your knees until your thighs are parallel to the ground. Staying in this squat position, use the muscles of your arms and back to slowly pull the handle to your chest. Holding the squat position, slowly release, while still keeping your shoulders stacked on top of your hips.

Mountain Climbers. 30 seconds.

Get into a push-up position with your weight balanced on your hands and toes. Now bend one knee and drive it toward your chest, then immediately return it to the starting position and do the same with the opposite leg. Continue alternating legs at the most rapid speed you can to appear as if you were running up a mountain.

"I have low blood sugar, so I definitely need things to keep me going (aka lots of food!)," Jenner has written on her app. "Here's what will forever and always make my list: Twix, Justin's Peanut Butter, chips and guac, and hummus and carrots. See, pretty simple—just feed me, and I'm ready to go!" The protein in the PB and healthy fats in the guac are a great choice.

"I was having a panic attack two nights ago, and I was just like, 'Oh, but you know what? I'm just going to pick up this book and try to forget,'" she told i-D, which noted "at the moment she's reading the romance novel It Ends with Us by Colleen Hoover, and mentions that her best friend is reading it with her so that they can discuss it as they go." Reading is a "great form of therapy and form of distraction…I just love having things that are for me and no one else, you know? I feel like reading is one of those things."