Stress, hormones, and muscle loss start to affect how your core health, not just how it looks.
When hormones are at play, your body responds differently to exercise…from where you store fat to how you handle stress, and how your deep core muscles support your midsection.
When they’re not activating properly, your body compensates and your stomach pushes outward instead of being supported inward.
And your midsection never really changes.
Inside the guide, I’ll show you how to fix this with the right core exercises and simple shifts that help reduce belly fat.
If your core muscles aren’t working properly, no amount of crunches will fix it.
This guide shows you how to retrain your core from the inside out—so you can finally see and feel a difference.

Lindsay Brin holds a degree in Exercise Science and has over 20 years of experience helping women, especially women over 40, build strength and redefine what fitness means for life. She has certified Pilates instructors and CPTs across the U.S. and developed a fitness course accredited by National Academy of Sports Medicine (NASM) and American Council on Exercise (ACE).
But her most transformative learning came after 40, when she began experiencing perimenopause. Lindsay immersed herself in the science of aging, hormones, walking, HIIT, and strength training—ultimately developing a method that works with your body, not against it.
This is now the foundation of Moms Into Fitness, which has helped over 85,000 women rebuild strength, renew energy, and create lasting results.
