As a woman over 50, I have lived more than a few of the stereotypes—and one of those is the tight trousers.

I am not talking about the morning after an especially large Thanksgiving dinner. I mean tight trousers in general. Trousers that fitted perfectly well a few months ago suddenly require a deep breath, a firm tug and, occasionally, an acceptance of defeat.

Middle-age spread is real.

It is also deeply annoying because it can appear even when you do not think you have gained much weight. Your face looks the same. Your arms look the same. The number on the scale may not have moved dramatically. But your waist has apparently decided to begin an independent expansion project.

So, what exactly is going on—and can we do anything about it?

Why Does Our Waistline Change After 50?

The first thing to understand is that middle-age spread is not necessarily evidence that we have become greedy or lazy. Of course, sometimes we do overindulge. I know I do—more often than I care to admit. And for me, it is especially the carbohydrates: pancakes, bread, rice and pasta. For some reason, my body seems to crave more of them now than it ever did before.

As we age, we naturally begin to lose muscle, particularly if we are not doing anything to preserve it. Less muscle generally means our bodies require fewer calories than they once did. We can continue eating much as we did in our thirties and forties, only to discover that our bodies are no longer processing that food in quite the same way.

Menopause adds another complication. Declining oestrogen appears to influence where the body stores fat. Instead of settling mainly around the hips and thighs, more of it may begin gathering around the abdomen. Genetics, sleep, stress, alcohol and how active we are also play a part.

This explains why some women find that their shape changes even when their actual weight does not change very much.

Can We Stop Middle-Age Spread Completely?

I would love to tell you that there is one particular food, exercise or expensive supplement that will return your waist to its former dimensions. There is not.

We also cannot choose precisely where our bodies lose fat. Doing 200 sit-ups may strengthen the muscles underneath your belly, but it will not instruct your body to remove fat from that area first.

What we can do is reduce overall body fat, preserve muscle and avoid some of the habits that allow the weight to creep on unnoticed.

None of this requires starvation. In fact, constantly eating too little can leave us tired, hungry and far more likely to find ourselves standing in the kitchen at 10 p.m. eating something we never intended to eat.

The Uncomfortable Truth About Strength Training

Strength training keeps coming up whenever I research health after 50. Frankly, I would prefer it if the experts recommended shopping or sitting in a café, but apparently neither qualifies.

Women over 50 need to preserve muscle, and resistance exercise is one of the most effective ways to do it. It also helps protect our bones and makes ordinary life easier—from carrying groceries to getting out of a low chair without making an involuntary noise.

You do not need to lift enormous weights or join a gym full of people photographing themselves in mirrors. You can begin at home with light dumbbells, resistance bands, wall push-ups, squats or repeated sit-to-stand movements from a chair.

The general recommendation is to include muscle-strengthening activity at least twice a week, along with roughly 150 minutes of moderate aerobic activity. But if you are currently doing very little, begin with what you can manage. Five or ten minutes still counts.

The important thing is to stop believing that walking alone is always enough. Walking is excellent, but our muscles also need a reason to remain.

Look at What You Are Actually Eating

I do not believe every woman over 50 needs to go on a diet. I do believe we occasionally need to conduct an honest audit.

Have portions become larger? Are we eating because we are hungry or because it is 8 p.m. and we always have something sweet at 8 p.m.? Does one glass of wine regularly become two? Is the innocent morning coffee actually a large, sweetened drink containing the calories of a small meal?

None of these things makes us bad. But they still count.

Try to include a source of protein with every meal: eggs, Greek yoghurt, fish, chicken, tofu, lentils, beans or lean meat. Protein helps us maintain muscle and can make a meal more satisfying.

Fibre matters too. Vegetables, fruit, beans and whole grains help fill the plate and keep us satisfied. The answer is not to remove every potato, piece of bread or bowl of pasta from your life. It is to make those foods part of the meal rather than allowing them to become most of the meal.

The Calories We Drink Still Count

This may be the least enjoyable section of the article. Personally, I have reached the point where I believe water is my default drink.

Alcohol, fruit juice, fizzy drinks and sweetened coffees can add a surprising number of calories without making us feel as though we have eaten anything. Alcohol can also interfere with sleep—and a tired woman is not always a woman who wants to prepare vegetables and go for a brisk walk.

You do not have to give up every pleasure. I certainly do not want to live in a world in which women over 50 are permitted only grilled fish, herbal tea and an early bedtime. But if your waistline is changing, what you drink is worth examining.

Walk Whenever You Can

Walking remains one of the easiest ways to bring more movement into the day.

Walk to the shop. Get off the bus one stop earlier. Take a short walk after lunch. Pace around the room while talking on the telephone. Put on music and move while tidying the house.

A short walk may not feel impressive enough to matter, but small amounts of movement performed consistently are more useful than a punishing exercise session you complete once and never repeat.

Walking after a meal can be particularly easy to incorporate. Instead of moving directly from the table to the sofa, go around the block for ten or fifteen minutes.

Sleep Is Part of the Equation

Middle-age insomnia is real. Anyone who has spent enough time scrolling through conversations among menopausal women will know that sleep becomes complicated for many of us during and after menopause.

Hot flushes, anxiety, mysterious aches and the equally mysterious 3 a.m. awakening can leave us exhausted. Sometimes that 3 a.m. awakening turns into an all-nighter. It is insane.

When we are tired, we tend to move less. We may also reach for sugary or high-calorie foods because we want quick energy—or simply because we feel we deserve something comforting after a miserable night.

If menopause symptoms are regularly preventing you from sleeping, speak to your doctor. That is not something you necessarily have to endure in silence.

Hormone replacement therapy may help some women by improving disruptive symptoms, but it is not a weight-loss treatment. Any decision about HRT should be made with a qualified medical professional who understands your health history.

Do Not Wait Until You Hate Your Body

We have a terrible habit of postponing action until we feel sufficiently disgusted with ourselves.

I do not think that is a good place from which to begin.

Your body has carried you through more than 50 years of life. It may have survived illness, grief, stress, childbirth, caregiving, heartbreak, financial difficulty and a hormonal upheaval nobody adequately warned you about. It does not need to be insulted into submission.

It may simply need different care now.

Start with two sessions of strength training each week. Add more walking to your ordinary day. Put protein and vegetables on the plate before filling the remaining space. Pay attention to alcohol, sweetened drinks and the little things you consume without really registering them.

And try on those tight trousers occasionally—not as an instrument of torture, but as a more honest measure of progress than the bathroom scale.

Middle-age spread is real. But so is our ability to become stronger, healthier and more deliberate about how we live after 50.

We may not be able to make our bodies behave exactly as they did at 30. Personally, I am not interested in returning to every part of my thirties anyway.

I would simply like to fasten my trousers without having to lie down on the bed.