Plus tonique, plus mince, plus musclée: Le guide simple et scientifique pour obtenir un corps parfait

Understanding the science behind fitness can be complex, so I'm curious what motivated the author to target women in this way.

Some tips seem straightforward, but I wonder if they cover all body types and fitness levels. Would love to hear others' experiences.

I'm interested in whether these methods are more effective or sustainable than traditional routines, especially for beginners.