The Truth About Hormones After 35: What Every Woman Should Know

Have you ever had one of those weeks where you just don't feel like yourself?

You're exhausted even though you went to bed at a reasonable time. You're waking up in the middle of the night, feeling more irritable than usual, craving sugar by mid-afternoon, and wondering why your clothes suddenly feel tighter around your waist.

Maybe your periods have changed. Maybe you're feeling more anxious than you used to. Or perhaps you're doing all the same things you've always done to take care of yourself, but your body seems to be responding differently.

And somewhere along the way, you've probably wondered:

"Is this my hormones?"

As a Registered Holistic Nutritionist working with women in their 30s and 40s, this is a conversation I have regularly. And as a busy mom approaching 40 myself, it's something I'm becoming increasingly interested in, both personally and professionally.

But one thing I've noticed is how much confusing information there is surrounding women's hormones.

One person tells you to eliminate carbohydrates. Another says you need to lower your cortisol. Someone else recommends a hormone-balancing supplement, a special seed-cycling routine or a detox to reset your system.

And before you know it, you're wondering whether every symptom you experience is somehow connected to a hormone that's out of balance.

The truth is that hormones absolutely influence how we feel and function, particularly as we approach midlife. But hormonal health is much more complex than simply trying to "balance" a few hormones.

And understanding that difference can completely change how you approach your health.

First, What Do Hormones Actually Do?

Hormones are chemical messengers that travel through your body and help coordinate countless processes.

They influence your menstrual cycle, reproduction, metabolism, appetite, blood sugar regulation, sleep, stress responses, body temperature and much more.

Some of the hormones we frequently hear about include estrogen, progesterone, cortisol, insulin and thyroid hormones.

But here's something I think is important to understand: your hormones aren't supposed to stay at exactly the same levels all the time.

For example, estrogen and progesterone naturally fluctuate throughout the menstrual cycle. Cortisol follows a daily rhythm, typically rising in the morning and decreasing throughout the day. Insulin responds to food intake and helps regulate blood glucose.

These fluctuations are normal and necessary.

So when we talk about "balancing hormones," we need to be careful not to imply that healthy hormones should remain perfectly steady.

The goal isn't to eliminate normal hormonal fluctuations. It's to understand whether your body is functioning appropriately and whether symptoms suggest something needs further attention.

Why Your Late 30s and 40s Can Feel Different

One of the biggest changes women may encounter during this stage of life is the transition toward menopause.

Perimenopause refers to the years leading up to menopause, when reproductive hormone patterns begin changing and menstrual cycles may become less predictable.

For many women, this transition begins in their 40s, although the timing varies.

During perimenopause, estrogen levels can fluctuate considerably, and ovulation may become less consistent, which can also affect progesterone production.

Some women notice changes in their menstrual cycles first. Others begin experiencing disrupted sleep, night sweats, hot flashes, mood changes or other symptoms.

And for some women, the transition is relatively uneventful.

That's why I don't want women assuming that every symptom they experience after 35 must automatically be perimenopause.

But I also don't want them dismissing meaningful changes simply because they're still having periods or because they think they're too young.

If you're noticing persistent changes in your cycle, sleep, mood or other symptoms, it's worth discussing them with a qualified healthcare professional.

Cortisol Isn't the Enemy

Can we talk about cortisol for a moment?

Because if you've spent any time on social media lately, you've probably seen someone talking about "cortisol belly," cortisol detoxes or the idea that your stress hormone is responsible for every frustrating change in your body.

Cortisol is an important hormone produced by your adrenal glands. It helps regulate your response to stress and plays roles in blood glucose regulation, metabolism, immune function and your sleep-wake cycle.

You actually need cortisol.

The problem isn't that your body produces it.

The concern is that ongoing stress, poor sleep and certain medical conditions can affect how your stress-response system functions.

And while chronic stress can influence appetite, sleep, food choices and overall health, it doesn't mean that every woman carrying weight around her abdomen has elevated cortisol.

This is where I encourage women to focus less on trying to "lower cortisol" with a particular drink or supplement and more on looking at the bigger picture.

Are you sleeping enough? Are you eating regularly? Are you constantly rushing from one responsibility to another? Are you giving yourself opportunities to recover? Are you relying on caffeine to get through the day?

Sometimes supporting your stress response begins with ordinary, consistent habits rather than another product.

Insulin Is Another Hormone We Need to Stop Demonizing

Insulin is often talked about as though it's something we should avoid.

But insulin is essential for life.

Produced by the pancreas, insulin helps your body regulate blood glucose by allowing cells to take up and use or store glucose.

When we eat carbohydrates, blood glucose may rise, and insulin helps manage that response.

That's normal.

Where concerns can arise is when cells become less responsive to insulin, a condition known as insulin resistance. Over time, insulin resistance can contribute to metabolic health concerns, including type 2 diabetes.

But this doesn't mean carbohydrates are bad or that every rise in insulin is harmful.

Instead of eliminating fruit, oats, potatoes and other nutritious carbohydrate foods, I encourage women to focus on the overall quality and balance of their meals.

Including protein, fibre-rich carbohydrates, vegetables and healthy fats can support a nourishing eating pattern and help with satiety.

Regular movement, including strength training and walking, also supports insulin sensitivity.

You don't need to fear carbohydrates to support metabolic health.

Thyroid Health Deserves Attention Too

Another important part of the hormonal conversation involves the thyroid.

Your thyroid produces hormones that help regulate metabolic processes throughout the body.

When thyroid hormone levels are too low, a condition known as hypothyroidism, symptoms may include fatigue, constipation, cold intolerance, dry skin, changes in menstrual cycles and weight gain.

The difficulty is that many of these symptoms overlap with other concerns, including inadequate sleep, stress, nutritional deficiencies and perimenopause.

That's why symptoms alone can't tell us whether someone has a thyroid condition.

If you're experiencing persistent fatigue, unexplained weight changes, constipation or other concerning symptoms, appropriate medical assessment and testing may be important.

I don't want women spending months trying to fix a suspected thyroid issue through supplements or dietary restrictions without first understanding what's actually happening.

Why Sleep Can Become More Complicated

One of the most common concerns I hear from women approaching midlife is that their sleep has changed.

Maybe you fall asleep easily but wake around 3 a.m. and struggle to fall back asleep.

Maybe you wake feeling overheated or restless.

Or perhaps you're sleeping for what should be enough hours but still wake feeling exhausted.

Hormonal changes during perimenopause can contribute to sleep disruption, particularly when symptoms such as night sweats are involved.

But sleep difficulties can also be related to stress, caffeine, medications, sleep apnea and many other factors.

This is why I encourage women to look at sleep as part of their overall health rather than treating it as something separate.

A consistent sleep schedule, a comfortable sleeping environment, appropriate caffeine timing and a relaxing evening routine can all be helpful.

And when sleep disruption becomes persistent or significantly affects your quality of life, it's important to seek appropriate assessment and treatment.

Your Nutrition Matters, but Food Cannot Fix Every Hormonal Problem

As a Nutritionist, I believe strongly in the role nutrition plays in supporting overall health.

But I also think we need to be realistic about what food can and cannot do.

Eating broccoli doesn't automatically lower estrogen to an ideal level.

Drinking a particular herbal tea doesn't guarantee better progesterone production.

And following a restrictive diet won't necessarily resolve symptoms caused by perimenopause, thyroid disease or other medical conditions.

What nutrition can do is provide the energy and nutrients your body needs to function.

And that matters tremendously.

When I'm supporting women through this stage of life, I often begin with the foundations.

Are they eating enough protein to support muscle maintenance? Are they including fibre-rich foods to support digestive and metabolic health? Are they eating regularly? Are they getting enough dietary fats? Are they consuming a variety of nutrient-dense foods?

These questions might not sound as exciting as a hormone-balancing protocol, but they're often much more useful.

Protein, Fibre and Healthy Fats: Three Nutritional Priorities

If you're wondering where to begin with nutrition, I would focus on building balanced meals rather than searching for one particular hormone-supporting food.

Protein is especially important as we age because it helps support muscle maintenance and repair. Including a meaningful protein source at breakfast, lunch and dinner can also help make meals more satisfying.

Fibre is another priority. Foods such as vegetables, fruit, beans, lentils, oats, whole grains, nuts and seeds support digestive health and can contribute to healthy blood glucose and cholesterol levels.

And dietary fats are important too. Foods such as olive oil, avocado, nuts, seeds and fatty fish provide essential fatty acids and other nutrients.

A balanced meal might look like salmon with roasted vegetables and quinoa, or chicken with sweet potatoes, broccoli and olive oil.

For breakfast, it could be Greek yogurt with berries, oats, chia seeds and walnuts.

These meals aren't magical hormone-balancing formulas.

They're simply examples of nourishing food that supports your body.

And sometimes that's exactly what we need to return to.

Strength Training Is One of the Best Habits to Prioritize

If you've read some of my previous blogs, you'll know how much I value strength training.

And when we're talking about women's health approaching 40, it becomes even more important.

Resistance training supports muscle mass, strength, bone health and metabolic health.

It can also help improve insulin sensitivity, making it a valuable part of a healthy lifestyle.

As we move toward menopause and beyond, maintaining muscle and bone strength becomes increasingly important.

You don't need to become a bodybuilder or spend hours in the gym.

For many women, beginning with two or three manageable strength-training sessions per week is a realistic approach.

And remember, the goal isn't simply to burn calories.

It's to build a stronger body that can support you through the decades ahead.

The Role of Stress Management and Recovery

Something I wish more women understood is that taking care of your nervous system doesn't require an elaborate wellness routine.

You don't need to meditate for an hour every morning.

You don't need to purchase expensive relaxation products.

And you certainly don't need to feel guilty because your life is stressful.

As a busy mom, I know how unrealistic it can feel when someone suggests simply eliminating stress.

For many of us, the responsibilities aren't going anywhere.

But we can look for opportunities to create moments of recovery.

That might mean taking a walk outside, practising a few minutes of slow breathing, reading before bed, spending time with people you love or setting boundaries around commitments that are leaving you exhausted.

Even small changes can help make your daily routine feel more manageable.

And when stress is significantly affecting your mental or physical health, professional support can be valuable.

Do You Need Hormone Testing?

This is a question I think deserves more attention.

When women begin experiencing symptoms, it's understandable to want answers, and hormone testing can sometimes be appropriate.

However, not every woman needs a comprehensive hormone panel.

During perimenopause, estrogen and other reproductive hormone levels can fluctuate considerably, sometimes even from one day to the next. This means a single measurement may not accurately reflect the broader hormonal transition.

For many women over 45 with typical symptoms, perimenopause can often be assessed clinically without routine reproductive hormone testing.

For younger women, those with unusual symptoms or those with possible thyroid or other medical conditions, testing may be more useful.

The important thing is to work with a qualified healthcare professional who can determine which investigations are appropriate based on your symptoms, age and medical history.

Be cautious about expensive at-home hormone panels that promise to explain every symptom or provide a complete picture of your hormonal health.

More testing doesn't always mean better answers.

What About Hormone-Balancing Supplements?

The supplement industry has created an enormous market around women's hormones.

You'll find products promising to lower cortisol, increase progesterone, detox estrogen, support adrenal health or eliminate stubborn belly fat.

Some supplements may have legitimate uses in specific circumstances, but many broad hormone-balancing claims are not supported by strong evidence.

Supplements can also interact with medications, affect laboratory results or be inappropriate for certain health conditions.

That's why I believe supplementation should be individualized and based on a clear reason rather than a social-media trend.

Before spending hundreds of dollars on supplements, I would much rather see a woman understand her symptoms, address nutritional gaps where appropriate, evaluate her sleep and stress, and seek medical guidance when needed.

Your foundations matter.

And supplements should never be used as a substitute for diagnosing or treating an underlying medical condition.

What I Wish More Women Understood About Hormones After 35…

If there's one thing I want women to take away from this article, it's that hormonal health isn't about chasing perfect numbers or eliminating every natural fluctuation in your body.

It's about understanding the changes happening during this stage of life and recognizing when your body may need additional support.

You don't need to blame every symptom on cortisol.

You don't need to fear carbohydrates because of insulin.

You don't need to assume every change in body composition means your estrogen is out of balance.

And you don't need to purchase an entire shelf of supplements to support your health.

What you do need is a thoughtful, individualized approach.

That might include eating enough nourishing food, prioritizing protein and fibre, strength training, moving regularly, protecting your sleep and finding realistic ways to manage stress.

It may also include working with your healthcare provider to investigate persistent symptoms or discuss appropriate treatments for perimenopause and other hormonal concerns.

The goal isn't to control every hormone in your body.

The goal is to understand your body well enough to support it appropriately.

Five Things I Would Encourage Every Woman to Start With:

If you're approaching 40 and feeling overwhelmed by all the hormone-related information online, I want you to simplify things.

First, start paying attention to patterns in your symptoms. Notice changes in your menstrual cycle, sleep, energy, mood and other concerns. Keeping a simple record can help you identify trends and provide useful information if you speak with your healthcare provider.

Second, focus on building balanced meals. Include protein, fibre-rich foods, healthy fats and a variety of nutrient-dense ingredients throughout your day.

Third, make strength training part of your routine if you're able. Maintaining muscle and strength is an investment in your long-term health.

Fourth, prioritize sleep and recovery. Look at your caffeine intake, evening habits, sleep environment and daily stress load.

And finally, stop trying to diagnose yourself through social media.

If you're experiencing persistent, worsening or disruptive symptoms, seek appropriate medical assessment.

You deserve answers that are based on your individual health, not a generic checklist of symptoms someone posted online.

Your Body Isn't Broken. It May Simply Be Changing…

As I approach 40, I'm becoming increasingly interested in understanding my body rather than trying to fight it.

I want to know how to support my energy, strength, digestion, sleep and overall health as I move into this next chapter.

And I want other women to feel empowered to do the same.

Because the conversation around women's hormones shouldn't leave us feeling afraid of aging or convinced that our bodies are constantly malfunctioning.

It should help us understand that our needs may evolve, that symptoms deserve attention, and that there are meaningful ways to support our health.

Sometimes that means improving the foundations.

Sometimes it means seeking medical guidance.

And often, it means a combination of both.

You don't need to spend your 40s chasing perfectly balanced hormones. You deserve to spend them feeling informed, supported and confident in how you're taking care of yourself.

Ready to Understand What Your Body Needs in This Season of Life?

If you're approaching 40 and struggling with low energy, digestive concerns, disrupted sleep, changes in body composition or simply feeling like your usual healthy habits aren't working the way they once did, you don't have to figure everything out alone.

Inside my Elevate Your Health eight-week one-on-one program, we take a personalized approach to your nutrition and lifestyle.

Together, we look at your current eating patterns, symptoms, sleep, stress, movement, routines and health goals, and build a practical plan designed around your individual needs.

Rather than chasing trends or overwhelming you with endless changes, we focus on the foundational habits and targeted strategies that make sense for you, while recognizing when medical assessment or additional care is needed.

Because your body deserves more than another generic wellness plan.

It deserves an approach that considers the whole picture.

Learn more about Elevate Your Health and working with me one-on-one.