16/06/2026
You're eating well. You're training. You're tracking. The scale won't budge.
Or worse... it's creeping up.
The first instinct is to cut more food and add more cardio. That instinct will make it worse. The problem isn't your discipline. The problem is your cortisol.
Cortisol is your body's stress hormone. In short bursts it's protective, it gets you out of danger and through hard moments. The issue is chronic elevation. When cortisol stays high for months or years (which is the reality for most women in their 40s juggling work, family, hormones and poor sleep), it starts doing specific metabolic damage. It directs fat to be stored as visceral fat around your organs. It breaks down muscle to release amino acids for fuel. It keeps blood glucose elevated so insulin stays high. It blocks fat burning. It increases cravings for sugar and refined carbs. It disrupts sleep. And it steals from your s*x hormones, because your body uses the same precursor molecule for both stress hormones and reproductive hormones and under chronic stress, it prioritises cortisol every time.
This is why so many women in perimenopause hit a wall with weight loss. They're not eating too much. They're eating too little. They're not under-training. They're over-training in the wrong way. The standard advice is to eat less, do more cardio, actually elevates cortisol.
The fix is counterintuitive: less of the wrong things, more of the right things.
What lowers cortisol: eating enough calories (especially protein and carbs around training), lifting weights instead of pounding cardio, walking daily, getting morning sunlight to reset your cortisol curve, prioritising sleep, magnesium glycinate at night, breathwork or slow nasal breathing, and being honest about the parts of your life that are bleeding you dry.
Yes, your nervous system matters. No, this isn't woo. It's measurable, biological and it determines whether you lose fat or hold onto it.
If you've been doing everything "right" and nothing is working, this is probably your missing piece.