Why Cardio Stops Working in Midlife (& what to do instead) - Erin Henry

Send us Fan MailPerimenopause and menopause bring real physiological shifts that change how women respond to exercise, food, and stress. Registered dietitian and strength coach Erin Henry joins me to explain those changes clearly, and to share what actually helps women build strength, stabilise energy, and feel capable again.Our conversation starts with the physiology. Declining oestrogen, reduced insulin sensitivity, and a more reactive stress response change how women respond to food and training. Erin explains why eating less and doing more cardio often backfires, and why progressive strength training becomes a cornerstone in this phase of life. Lifting heavier loads recruits more muscle, supports bone density, and improves metabolism across the whole day. If the weights never increase, the body has no reason to adapt — and effort alone won’t change that.From there, we move into the practical levers that make the biggest difference. Sleep is a performance tool, not a luxury. Simple wind-down routines, thoughtful alcohol timing, and — for some women — magnesium can improve sleep quality and lower anxiety. Nutrition is anchored in protein, with around 30 grams per meal helping recovery, stabilising energy, and reducing cravings. Erin also shares how vegetarians can meet protein needs with planning and quality supplements. We touch on data too — labs, CGMs, and HRV — as ways to validate lived experience and cut through conflicting advice.The conversation widens to identity. Midlife is a moment to choose stronger rather than smaller, boundaries rather than people-pleasing, and intention rather than panic. As energy improves and brain fog lifts, many women notice changes that ripple outward — better sleep, improved body composition, and a renewed sense of confidence in their bodies. Erin also outlines her Strong Start one-to-one coaching approach, designed to build a pain-free foundation and progress with purpose.If this episode resonates, follow the show, leave a review, and share it with a friend who’s ready for a smarter, steadier approach to perimenopause and beyond.Join Erin's Midlife Metabolism Masterclass hereVisit our website to find out more about this week's guest.All of our guests, including this one, are included in our Guest Directory so that you can find out more about them and the work that they do.https://midliferebelpodcast.com/guest-directoryIf you'd like to support the show you can buy me a coffee!https://buymeacoffee.com/midliferebelpodcast