Why You Gained Weight This Winter (Even Though You Didn't Really Change Anything)

The real reason your body is holding on — and how to gently work with it this spring.

This morning, I heard birds chirping outside my window for the first time. That small sound stopped me in my tracks. Spring is here. And with it comes that delicious pull toward lighter clothes, longer days, and the quiet hope that maybe this season, things will feel different.

But first — can we talk about winter for a second?

A few years ago, I would dread this time of year. Not because I didn't love spring, but because stepping into it meant facing the weight that had quietly crept on between November and March. And the most frustrating part? I hadn't really changed anything. I was still eating relatively well. Still moving. Still doing allllll the things.

So why did my body keep holding on?

It took me a long time … and a lot of research into perimenopause, cortisol, and insulin resistance… to understand what was actually happening. And once I did, everything changed. I started working with my body instead of against it.

Here's what I wish someone had told me sooner.

Your perimenopausal body is more sensitive to winter than you think

Here's something most people don't realize: the winter season itself is a hormonal stressor — especially in perimenopause.

When estrogen starts to decline (which is exactly what's happening in perimenopause), your body loses one of its most powerful anti-inflammatory, stress-buffering hormones. Estrogen helps regulate cortisol (your primary stress hormone). Less estrogen means cortisol runs higher and stays elevated for longer.

Now layer winter on top of that. Shorter days mean less sunlight, which disrupts sleep and lowers serotonin. Less movement. More comfort food. More social eating. Holiday stress. Heavier, carb-rich meals. A glass (or two) of red wine by the fire.

"I love a cozy winter evening — the fondue, the pasta, the red wine by the fire. I'm not here to take that away from you. But I had to learn how to help my body process those things so they didn't completely derail me."

None of those things are inherently bad. But in a perimenopausal body with already-elevated cortisol, they create a perfect storm: cortisol spikes blood sugar, blood sugar triggers insulin, and insulin — when it's chronically elevated — tells your body to store fat. Particularly around your midsection.

And because estrogen is also an anti-inflammatory hormone, its decline means that the inflammation from disrupted sleep, processed food, and chronic stress hits harder and lingers longer.

So no, you didn't imagine it. Your body really did change. And it wasn't your fault.

Why restriction makes it worse

This is the part that trips so many women up. The logical response to weight gain is to eat less and move more. Cut the carbs, skip the wine, go harder at the gym.

But in a perimenopausal body, that approach often backfires.

Restriction is a stressor. And when your body is already running on elevated cortisol, adding more stress — even the "healthy" kind — just keeps insulin elevated and inflammation simmering. You end up exhausted, frustrated, and feeling like your body is working against you.

It's not. It's just asking for something different.

What actually helps (and it's simpler than you think)

The shift I made wasn't about restriction. It was about addition and consistency.

I started making sure I was getting enough protein at every meal (at least 30 grams) because protein stabilizes blood sugar and reduces the cortisol response to eating. I prioritized fiber every day, which supports gut health and helps your body clear excess estrogen. And I added a gentle 10-minute walk after meals, which is one of the most effective tools I know for managing post-meal blood sugar spikes.

I didn't stop having cozy nights by the fire. I still eat pasta and fondue. I still pour a glass of red wine. But I understand now how to anchor those moments with habits that protect my metabolism … before, during, and after.

"The shifts themselves are simple. The mindset shift is the harder part — choosing to support your body even when convenience is calling. But once you experience what's possible on the other side, there's no going back."

This spring, I'm not dragging myself into the season. I'm walking in with energy and ease … and I want that for you too.

Want to understand what's really going on with your body in midlife?

I put together a free guide — Why the Weight Won't Budge in Midlife (And What To Do About It) — that walks you through exactly what's happening hormonally, and the three simple shifts that helped me lose 7 lbs of belly fat without restriction.