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What Every Woman Should Know About Perimenopause

Perimenopause is the transition period leading up to menopause, and it can begin as early as your mid-30s—though most women notice changes in their 40s. It typically lasts between four and eight years, ending twelve months after your final period. Understanding what's happening in your body during this time can make the experience far less confusing.

What's Actually Happening

During perimenopause, your ovaries gradually produce less estrogen. But this decline isn't a smooth downward slope—it's erratic. Estrogen levels can swing dramatically from month to month, sometimes spiking higher than they ever were in your twenties before dropping off. This hormonal turbulence is what drives most perimenopausal symptoms.

Progesterone also declines, often earlier and more steadily than estrogen. Because progesterone has a calming effect on the brain, its loss can contribute to anxiety and sleep problems well before hot flashes ever appear.

Common Symptoms

The symptom list is long, and no two women experience it identically. Some of the most common include:

• Irregular periods — cycles that shorten, lengthen, or skip entirely
• Hot flashes and night sweats — sudden waves of heat, often disrupting sleep
• Sleep disruption — trouble falling asleep or waking at 3am
• Mood changes — irritability, anxiety, or a shorter fuse than usual
• Brain fog — word-finding difficulty, trouble concentrating
• Vaginal dryness — often accompanied by discomfort during sex
• Joint aches — estrogen affects connective tissue
• Heavier or lighter bleeding — sometimes dramatically so

What Helps

Hormone therapy remains the most effective treatment for hot flashes, night sweats, and vaginal symptoms. The reputational damage from the 2002 Women's Health Initiative study has been substantially revised—for most healthy women under 60 or within ten years of menopause, the benefits outweigh the risks.

Lifestyle measures matter more than they get credit for. Strength training preserves bone and muscle mass, both of which decline with estrogen. Limiting alcohol reduces hot flashes and improves sleep. Consistent sleep timing helps more than any supplement.

Non-hormonal medications exist for those who can't or don't want to use hormones. Certain antidepressants reduce hot flashes, and newer drugs targeting the brain's temperature regulation have shown real promise.

When to See a Doctor

See a clinician if bleeding is unusually heavy, periods come more frequently than every 21 days, bleeding occurs between periods, or symptoms are significantly affecting your quality of life. Perimenopause is normal, but it shouldn't be miserable.

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Remember me telling you about my sister? I sent this to her and she was so grateful. It also probably nudged her to finally book the appointment she'd been putting off for months.