The Svarene library

Clearer language for what you are noticing.

Evidence-linked guides to common perimenopause questions—written to inform, normalize, and help you prepare, never to diagnose.

A few anchors from the evidence

Science, without the coldness.

Research can make an experience more legible. It cannot tell you what a symptom means for you without individual clinical context.

40–60%

of midlife women report cognitive symptoms

Brain fog can include forgetfulness, distractibility, and difficulty finding words.

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12 months

without a period defines menopause

This definition applies when hormonal contraception is not affecting bleeding.

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1.38×

odds in one temperature–hot-flash finding

A 2024 study found higher odds of subjectively reported sleeping hot flashes after acute temperature increases.

Read the source
01

Cycles without alarms

Irregular cycles

Understand changing flow, longer gaps, and cycle-length variation without fertility-first assumptions or ‘late period’ warnings.

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02

When nights shape days

Brain fog and sleep

Understand night waking, sleep quality, energy, mood, and brain fog together—without turning a difficult week into a diagnosis.

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03

Make trial and error visible

Treatments and supplements

Understand what you take, when something changes, and what you notice afterward—without claiming that one caused the other.

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04

Environmental symptom intelligence

Weather, pollen, and symptoms

Explore whether heat, humidity, pressure, UV, air quality, or pollen may coincide with changes in how you feel.

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Available now on iPhone

A calmer way to understand what is changing.

Private by design. Built for perimenopause. Ready when you are.

Privacy at a glance

Core health logs stay on-device.

Optional services use only the limited information they need.

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