Perimenopause: When It Starts, Symptoms, and How to Support Your Hormones

Perimenopause: When It Starts, Symptoms, and How to Support Your Hormones

Perimenopause is often misunderstood—and most women aren’t told what to look for until they’re already struggling.

If you’re in your late 30s or 40s and noticing changes in your sleep, mood, or energy, this may be the early transition into perimenopause.

Understanding what’s happening in your body is the first step to feeling like yourself again and we'd love to help you at STAT Wellness

What Is Perimenopause?

Perimenopause is the transition phase leading up to menopause, when hormone levels—especially estrogen and progesterone—begin to fluctuate.

Unlike menopause (defined as 12 months without a period), perimenopause can last several years and is marked by hormonal variability, not just decline.

Hormone Changes in Perimenopause

• Estrogen levels fluctuate (can be high or low)

• Ovulation becomes less consistent

• Progesterone levels decline or become irregular

These changes are what drive most symptoms.

When Does Perimenopause Start?

Perimenopause can begin earlier than most women expect.

Early Signs of Perimenopause

• Can start in the late 30s to early 40s

• Cycles may still appear regular

• Symptoms often begin before cycle changes

Because of this, many women are told their symptoms are due to stress or aging—rather than hormones.

Common Perimenopause Symptoms

Perimenopause symptoms are often subtle and easy to overlook.

Physical and Emotional Symptoms

• Sleep disturbances (especially waking during the night)

• Mood changes (anxiety, irritability)

• Fatigue or low energy

• Brain fog or difficulty concentrating

• Body composition changes

• Decreased stress tolerance

These symptoms often appear before hot flashes or missed periods.

Why Progesterone Matters

One of the earliest hormonal shifts in perimenopause is a decline in progesterone due to inconsistent ovulation.

Low Progesterone Symptoms

• Poor sleep

• Increased anxiety

• Mood swings

• Worsening symptoms before your period

Progesterone plays a key role in calming the nervous system and supporting sleep, which is why these symptoms often show up first.

Do You Need Hormone Replacement Therapy (HRT)?

Not every woman in perimenopause needs hormone replacement therapy.

When to Consider Hormonal Support

• Symptoms are impacting quality of life

• Lifestyle changes aren’t enough

• Hormonal patterns suggest deficiency or imbalance

Treatment options may include:

• Lifestyle optimization

• Targeted supplementation

• Hormone therapy when appropriate

If estrogen is prescribed and you have a uterus, progesterone must also be included.

5 Ways to Support Hormones During Perimenopause

You don’t need to do everything—you need to focus on what matters most.

1. Prioritize Sleep

Sleep disruption is one of the earliest signs of hormonal shifts. Support your sleep routine and environment.

2. Strength Train Regularly

Strength training supports metabolism, insulin sensitivity, and long-term hormone health.

3. Support Your Nervous System

Chronic stress worsens symptoms. Focus on recovery, boundaries, and realistic expectations.

4. Pay Attention to Early Symptoms

Even with regular cycles, symptoms can indicate early perimenopause.

5. Get Personalized Guidance

Perimenopause is not one-size-fits-all. Individualized care leads to better outcomes.

Final Thoughts on Perimenopause

Perimenopause is a natural transition—but that doesn’t mean you have to struggle through it.

The key is understanding your body, recognizing early signs, and taking a targeted approach to support your hormones.

If you’re experiencing symptoms of perimenopause and want a personalized plan, you can book a free 15-minute consult to talk through your next steps.