Kerry Katona is giving Pamela Anderson vibes by posing in a bright red bathing suit and posting the photo on her social media. Katona, 42, was enjoying the spa at the Manor House Hotel in Cheshire, UK, and wanted to give them a shout out for her wonderful stay. "@spaatthemanorhouse WOW! Very very impressed ❤️❤️ you guys were amazing! Until next time 💆🏼‍♀️💞," she captioned the post. How does she stay so fit? Read on to see 5 ways Katona 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!

Katona tries to get up early every day for yoga at 530am. "Because there are many styles of yoga—including gentle yoga and chair yoga—the practice is accessible to nearly everyone," says Tracey M. Smith, DO. "Yoga has been shown to be a safe and promising stress management tool for children and adolescents, as well as pregnant people. If you are pregnant, check with your health-care provider to make sure there is no medical reason you shouldn't exercise."

Katona says she is "officially a non-smoker" after quitting smoking. Researchers have found that exercise can actually make symptoms of tobacco withdrawal easier to manage. "The evidence suggests that exercise decreases nicotine withdrawal symptoms in humans; however, the mechanisms mediating this effect are unclear," says Dr. Alexis Bailey, Senior Lecturer in Neuropharmacology, at St George's, University of London. "Our research has shed light on how the protective effect of exercise against nicotine dependence actually works."

Katona cuts alcohol out of her diet when she is trying to lose weight and get fit. "[Exercise] releases endorphins which relieve stress/anxiety and give a natural high," says Chris Davis, MD. "It also improves self-confidence and self-esteem and is a genuine reward for your body and mind — unlike alcohol, which is more of a punishment."

Katona enjoys boxing workouts at the gym, especially group classes. "Working out with a crowd carries a plethora of intertwined benefits that include enhancing consistency, duration, motivation, conversation and inspiration," says Dian Griesel, PhD, co-author of TurboCharged and president of public relations firm DGI. "Workouts with others improve consistency because they involve a commitment. 'No shows' and cancellations get noticed by others and positive peer pressure can help curtail the urges to skip a workout … or quit."

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Katona stays accountable by working out with her boyfriend, personal trainer Ryan Mahoney. Working out with a partner can really "up" your workouts, experts say. "We found that when you're performing with someone who you perceive as a little better than you, you tend to give more effort than you normally would alone," says Brandon Irwin, assistant professor of kinesiology at Kansas State University. "In certain fitness goals, like preparing to run a marathon, consider exercising not only with someone else, but with someone who is that much better. For an extra boost, consider some type of team exercise that involves competition, like playing basketball at a regular time throughout the week."