Nick Jonas in Workout Gear Shares Selfie of Jonas Brothers Doing a Treadmill Workout

Strength Training

Mariana relies on old-school strength training to keep her body toned. “Training till failure instead of reps + taking my ab routine up a notch by incorporating weighted exercises,” she wrote about one of her workout tactics. “I can feel my muscles being challenged and am in tune with my movements.” According to the Mayo Clinic, strength and weight training help reduce body fat, preserve and increase lean muscle mass, and burn calories more efficiently. Strength training may also help you:

• Develop strong bones
• Manage your weight
• Enhance your quality of life
• Manage chronic conditions
• Sharpen your thinking skills

Prioritizing Digestion and Getting Blood Work Done

Other healthy habits? “Prioritizing digestion,” she writes in the same post. “Making sure I get enough fiber & starting off every morning with a juice cleanse. This has helped me feel so much better everyday.” She also gets regular blood work done. “So important to check your levels and know what’s going on in your body routinely! Don’t skip the doc apts, always better to be preventative.”

Hiking

Mariana enjoys hiking. “Elevation therapy,” she captioned a post from one of her fitness adventures. According to the National Parks Service, the physical benefits of hiking include:

• Building stronger muscles and bones
• Improving your sense of balance
• Improving your heart health
• Decreasing the risk of some respiratory issues

Pilates

Mariana does reformer Pilates. “POV: Stepping into the prettiest torture chamber,” she wrote across a video of herself at the studio. Why is Pilates a good workout? According to the Mayo Clinic, the workout has many benefits, as it “strengthens the body's inner core while increasing its flexibility, resulting in improved overall health.” It can also promote longer, leaner muscles, injury prevention, stress and back pain relief, enhanced athletic performance, and heightened mind-body awareness.

Emsculpt NEO

Mariana recently got an aesthetic body treatment, Emsculpt NEO. “I’ve heard all the rage about the benefits to spot reducing fat & toning muscle so I had to give it a try to target those pesky lower abs. It was a 10/10 & a great addition to my workout routine,” she wrote.

She Follows 4 Diet Rules

Abigail swears that abiding by simple rules helps her stay in shape. “I can’t diet. That just doesn’t work for me,” she told New Beauty. “I started to be healthier by first cutting out soda. Then, I stopped eating after 7 p.m. Finally, I started really watching my portions so I was eating fewer calories every day. And water—lots and lots of water.”

She UsesMyFitnessPal

Abigail explains being accountable for what she eats is crucial. While it’s not “rocket science,” she does use the MyFitnessPal app to track her eating. “I’m the type of person who likes to eat what I want. The app can help anyone do that—you can still eat great food, you just eat less of it,” she added New Beauty.

Pilates

Abigail is a fan of Pilates. “Group workout classes are so big right now, but I always get nervous around other people in settings like that. I have to go at my own pace without a bunch of distractions so, for me, Pilates with a one-on-one instructor works best. It’s not cheap, but then you also aren’t tempted to skip,” she said She added to Men’s Fitness via Muscle & Fitness that the workout “keeps you long and lean” — and the Mayo Clinic agrees. They say it “strengthens the body's inner core while increasing its flexibility resulting in improved overall health.” It can also promote longer, leaner muscles, injury prevention, relief from stress and back pain, enhanced athletic performance, and heightened mind-body awareness.

Balanced Diet

“I love green juices and smoothies. Sometimes I’ll put some protein powder in the morning—I feel like the mix of vegetables, and vitamins and stuff that’s in them, really gives me a lot of energy in the morning. I love BBQ food—my ultimate cheat is a pulled pork sandwich, sweet potato fries, and macaroni and cheese from this great place in LA,” she told Men’s Fitness.

Strength Training

Ratchford also lifts weights. “Initially, I made the mistake that a lot of girls do and I was only doing cardio. I just really didn’t see too much change in my body. I’ve been listening to my girlfriends who are in great shape and they say you have to do weight training, you have to go in and do squats. That’s my new thing—I’ve been doing some resistance training, circuit training,” she told Men’s Fitness. The Mayo Clinic explains that strength and weight training help reduce body fat, preserve and increase lean muscle mass, and burn calories more efficiently. Strength training may also help you:

Develop strong bones

Manage your weight

Enhance your quality of life

Manage chronic conditions

Sharpen your thinking skills