This Is How Selena Gomez Transformed Her Body: Her Trainer Tells All

Build Stamina

According to Davis, one of the best things to do to get in shape is "interval and circuit training—and building a strong core." Switching it up helps to challenge your muscles continually and keeps your body guessing. "My whole thing is toning mixed with cardio and stretching," she says. A well-rounded fitness routine that includes all three components should help you build stamina and keep seeing progress.

Listen to Your Body

As with anything, there are good days and bad days. If you're lacking sleep or feeling blah, sometimes it's best to adjust your workout. "[My first priority when training Selena is] listening to her body—which everyone should do when it comes to working out," says Davis. "Sometimes we just do yoga and stretching, and sometimes we hit it hard. Working out, just like life, should be a balance."

More than anything, it is vital to hydrate throughout your workout. We love that S'well water bottles keep water at the perfect cool and refreshing temperature.

S'well 17 ounce Speckled Moon Bottle $35.00

Shop

Mix Up Your Workouts

Motivation waxes and wanes for the best of us. One way to combat that is to mix up your workouts, adding variety and choosing activities that stimulate you. "If you keep your same old routine, you will most likely get bored and wind up skipping the gym. Working out should be a part of your lifestyle, not an obligation or burden," Davis says. She recommends making your workouts fun by keeping them fresh and doing something different each day. "[Selena and I] do everything from Pilates to hiking to dance cardio to circuit training to yoga and Spinning—the list goes on."

Make Time to Stretch

Although it's tempting to skip your cooldown, recovery is vital to seeing maximum results. Invest in a good yoga mat and enjoy the stretch. "No matter what the workout is, we always make time to stretch. It keeps [you flexible], improves your performance, helps your joints, and enables your muscles to work to their best ability. Also, it feels really good," says Davis.

"Keeping fit, eating healthy, and loving yourself are all tied together," she adds. "When you feel good physically, you want to eat healthily, and when you take good care of yourself, you are happy. When you are happy, results come fast." Amen!

Gaiam Fitness Mat and Sling $17.00

Shop

Don't Focus on the Scale

Although the scale can measure some progress, it isn't the be-all and end-all of monitoring your results. Plus, it can lead to some unhealthy mental patterns: "I am not a fan of weighing yourself," Davis says. "I think it breeds obsessive thoughts and behaviors. If you work out and eat healthily, your body should do the rest! When you have a healthy mind, body, and soul—the results will come. I prefer the jean test. You know how your pants fit, so go off of that instead of a number. What does it even mean to weigh a certain number, right?" So step off the scale and celebrate your body as it is right now.

Be Flexible

"The workouts change daily on purpose. But I always incorporate some yoga and stretching into my day. I try and aim for 30 minutes of cardio at least four to six times a week. I do [resistance training] and stretching about six days a week," says Davis.

But she also acknowledges that you can't always stick to a strict schedule. "Sometimes my schedule only allows for 20 minutes, but my whole motto is to be flexible with your life and your workout. Obsession never got anyone anywhere, so I don't put pressure on myself to stick to a certain workout schedule. I am so active in general, and I work out with clients so much that I get plenty of physical activity every day. On tour, people joke that I move and walk faster than anyone else. I am always speeding around through the venue." Being more laid-back with your routine leaves room for the unexpected to happen and takes the pressure off. After all, there's always tomorrow.

Listen to Music You Love

Music can be a great motivator. Take it from Davis, whose personal workout playlist consists of some great jams like "Cheap Thrills" by Sia, "Controlla" by Drake, "Don't Let Me Down" by The Chainsmokers, "Past Lives" by Børns, "It Is What It Is" by Blood Orange, and "This Is What You Came For" by Calvin Harris. Find what songs get you pumped up and ready to go and use them to fuel your workout.