Jessica Simpson in Bathing Suit Has "Neon Energy"

Jessica Simpson is modeling Kim Kardashian’s swimsuits. The singer, actress, and entrepreneur shows off her slimmed-down figure in a neon green swimsuit in one of her latest social media posts. “SKIMS Swim + @Jessicasimpsonstyle Shoes = Neon Energy,” she captioned the Instagram snap. How does the mother of three keep herself physically fit? Read on to see 5 ways Jessica Simpson stays 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!

1. She Went to a Nutritionist

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Jessica maintains that her weight loss after baby number three primarily had to do with her diet. “I went to a nutritionist, and I needed to get my eating habits right,” she recently told Extra.

2. She Doesn’t Weight Herself

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Jessica’s trainer, Harley Pasternak told People that Jessica doesn’t pay attention to the number on the scale. “I never work with scales. My work with her is more about the habits she’s created and kept up. And as a byproduct of doing these habits, she lost 100 pounds,” he said. She recently told Today that she doesn’t weigh herself. "I have no idea how much I weigh," she said. "I just want to feel good and be able to zip my pants up. If I don't, I have another size. I have every size."

3. She Works Out

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Jessica’s sessions with Harley Pasternak are no joke. At one point she was doing 45-minute sessions three days a week, consisting mostly of strength and weight training exercises. She also gets her steps in with the help of activity trackers. As she embarked on her journey, her goal was 6,000 steps per day, eventually building up to 14,000, per E! News. “It’s a social thing that she can do with her kids," Pasternak said.

4. She Pushes Herself

Jessica pushes herself, even when she doesn’t want to work out. “First day back at it and I’m already hurtin’ and feelin’ real dramatic about being sore. I have been craving this, but procrastinating. One work out and I am determined to not let myself down. Although I will be eating a brownie to give myself some points!” she captioned an Instagram post of herself on the treadmill.

5. She Does Yoga

Jessica also does yoga, which is a great workout according to Harvard Health. “Researchers found that people who practiced yoga for at least 30 minutes once a week for at least four years, gained less weight during middle adulthood,” they said. “People who were overweight actually lost weight. Overall, those who practiced yoga had lower body mass indexes (BMIs) compared with those who did not practice yoga. Researchers attributed this to mindfulness. Mindful eating can lead to a more positive relationship with food and eating.”

Jessica Simpson is on vacation with her family, and she made sure to get some adorable photos for Instagram. In a recent post, Simpson and her family were seen doing different activities on the lake. They are seen riding jet skis, on a boat, and swimming. After having lost 100 pounds, Simpson looked great. She captioned the post, “Lake life.” How does she stay so fit? Read on to see 5 ways Jessica Simpson stays 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!

1. She’s Comfortable With Herself

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Simpson revealed on The Real that she is extremely comfortable with herself now. She says that this happened after she got to know herself a lot better. “I think that if everybody gets to know themselves, they'll like themselves more instead of aspiring for perfection to look like somebody else.”

2. She Learns From Her Experiences

NEW YORK, NY - FEBRUARY 05: Jessica Simpson seen out and about in Manhattan on February 5, 2020 in New York City. (Photo by Robert Kamau/GC Images)

Simpson has been a pop culture icon for so long. Notably, she went through a public divorce from Nick Lachey in the early 2000s. However, Simpson tells The Real that she has learned from her mistakes. “I learned from it. I learned from it that there's a lesson in everything and I was so young.

3. She Does Yoga

FRANKLIN, TENNESSEE - FEBRUARY 14: Jessica Simpson celebrates #1 New York Times best-selling memoir, "Open Book" at Dillard's CoolSprings on February 14, 2020 in Franklin, Tennessee. (Photo by John Shearer/Getty Images for Jessica Simpson Collection)

One workout Simpson likes to do to stay in shape is yoga. She posted this photo of herself in a warrior pose on Instagram. “Starting the week with a warrior mindset aligned with the beauty of the sunset,” she wrote. “Stress can reveal itself in many ways, including back or neck pain, sleeping problems, headaches, drug abuse, and an inability to concentrate,” says Natalie Nevins, DO, a board-certified osteopathic family physician and certified Kundalini Yoga instructor in Hollywood, California, according to the American Osteopathic Association. “Yoga can be very effective in developing coping skills and reaching a more positive outlook on life.”

4. She Sets Goals

LOS ANGELES, CALIFORNIA - FEBRUARY 22: Jessica Simpson attends Create & Cultivate Los Angeles at Rolling Greens Los Angeles on February 22, 2020 in Los Angeles, California. (Photo by Amy Sussman/Getty Images)

Simpson tells The Real that she likes to set small goals for herself. “I call it determined patience. I believe in setting small goals for yourself, because in my life and how I’ve done it, there’s easy ways to throw in the towel and just feel like it’s impossible," she said. "So, the small goals for me are what helped me achieve the main goal."

5. She Does Long Term Exercises

NEW YORK, NY - FEBRUARY 05: Jessica Simpson seen out and about in Manhattan on February 5, 2020 in New York City. (Photo by Robert Kamau/GC Images)

For Simpson, staying in shape has to be a long term thing. Her trainer, Harley Pasternak, says he has Simpson doing things that will help her stay consistently healthy. "It had to be more than just getting back from her baby weight, but how do I keep whatever I am doing now forever,” he tells E! News. That's why we are not a big fan of doing any extreme diet or radical forms of exercise.”

Jessica Simpson is heating things up south of the border! The singer, actress, and entrepreneur steamed up social media this week with her latest post, a photo of herself in a cutout swimsuit walking on the beach in heels. “The sun is settin’ on the most romantic, sexy and well deserved (if I do day so myself) Mexican getaway with my forever lover @ericjohnsonalrighhhht. Awww I will miss this, but I will be bringin’ home a lot of extra passion for everyone and everything that is for sure Adios Cabo San Lucas,” she captioned the post. How does the 42-year-old maintain her fit physique? Read on to see 5 ways Jessica Simpson stays in shape and the photos that prove they work—and to get beach-ready yourself, don't miss these essential 30 Best-Ever Celebrity Bikini Photos!

1. Her Diet Is Healthy

Jessica followers her trainer Harley Pasternak’s Body Reset Diet, eating three healthy meals a day of protein, fiber, and fat-rich foods and two snacks of protein and fiber or protein and fat. “She’ll have foods that are very flavorable that are healthier versions of things like a tortilla soup or Tex-Mex," the celebrity fitness instructor explained to People. She is also allowed to splurge on occasion. “It’s about balancing in a way that doesn’t make it painful or too much of a departure from your life before that.”

2. She Doesn’t Focus on the Number

Pasternak explained to People that Jessica doesn’t pay attention to numbers. “I never work with scales. My work with her is more about the habits she’s created and kept up. And as a byproduct of doing these habits, she lost 100 pounds,” he said. Jess added to Today that she doesn’t weigh herself. "I have no idea how much I weigh," she said. "I just want to feel good and be able to zip my pants up. If I don't, I have another size. I have every size."

3. She Trains Hard

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Jessica makes her workout sessions with Pasternak count. She does 45-minute sessions three days a week, consisting mostly of strength and weight training exercises.

4. She Gets a Lot of Sleep

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Jessica also makes sure to get enough sleep, per the guidance of Pasternak. "So many people undervalue the importance of sleep in weight loss and weight management," he told People."Every night before she goes to bed she sends an email showing that she hit all five tasks, so she’ll go to bed feeling successful. She’s hit her step goal, she’s eaten well, she’s balanced her responsibilities — so she can go to bed with a sense of fulfillment, and that’s everything."

5. She Keeps Track of Her Steps.

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Jessica gets her steps in! She uses an activity tracker to make sure she hits her goals. When she first embarked on her weight loss journey, her goal was 6,000 steps per day, eventually building up to 14,000, per E! News. “It’s a social thing that she can do with her kids," Pasternak said.