A celebrity personal trainer thought she had to do intense cardio to see results. Now, she strength trains and walks instead - and looks and feels better.

"I was always that gym bunny who would go to a million HIIT classes and completely batter myself and think that's the right way to get results," Shirvani, 32, said. "I always used to pour from an empty cup. I'd have multiple burnouts a year and it got to a point in 2022 where I had such a bad burnout that it took me six months to recover."

"It was such a big wake-up call for me," Shirvani said. "I was mentally really not in a good place for a long time." Her experience highlights the importance of balancing intensity and recovery in fitness.

"Her approach to fitness has evolved 'massively' since then. Seeking help from other trainers to reduce her workload, having a less restrictive diet, focusing on longevity, and replacing HIIT with strength training and low-intensity cardio have helped her feel better."

"Focusing on recovery has become more important to many, reflected by the increasing demand for smartwatches and rings that measure how well you've recovered as well as moved."

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