Perimenopause is not a mystery. It's a measurable transition.
From the first irregular cycle to your final menstrual period and beyond — Kairos™ tracks every symptom, scores every domain, classifies your reproductive stage, and delivers clinical-grade intelligence to your provider. No more guessing where you are. No more describing symptoms from memory. No more “let's wait and see.”
What's actually happening — and why it matters that you track it
The menopausal transition isn't a single event. It's a process that unfolds over years, with distinct stages, shifting symptoms, and clinically significant transition points. The medical community classifies this journey using a system called STRAW+10 — Stages of Reproductive Aging Workshop. Here's what that means in plain language.
Regular Cycles, Stable Hormones
Cycles Start Varying, Symptoms Begin
Irregular Cycles, Symptoms Intensify
Final Period +1 to +5 Years
5+ Years Post Final Period
Every symptom, scored. Every domain, tracked.
These are the seven clinically defined domains of menopausal health. Kairos™ scores each one daily based on your symptom reports, tracking trends over time.
Vasomotor
Hot Flashes & Night Sweats
The hallmark of menopause that affects up to 80% of women. Vasomotor symptoms -- hot flashes during the day and night sweats during sleep -- result from the hypothalamus responding to estrogen fluctuations. They range from mild warmth to drenching episodes that disrupt sleep and daily life.
Sleep
Sleep Quality & Disruption
Hormonal changes directly affect sleep architecture. You might fall asleep fine but wake at 3am. Or sleep through the night but never feel rested. Night sweats add a physical disruption layer. Over time, chronic sleep disruption compounds every other symptom.
Mood
Emotional Stability & Wellbeing
Estrogen influences serotonin and other neurotransmitters directly. Mood shifts in perimenopause aren't 'in your head' -- they have a biological basis. Anxiety, irritability, depressive episodes, and emotional reactivity can all emerge or intensify.
Cognitive
Mental Clarity & Focus
The 'menopause brain' that millions of women experience is real and measurable. Difficulty with word retrieval, reduced short-term memory, inability to focus, and mental fatigue are common. Estrogen is neuroprotective -- as it fluctuates, cognitive function can follow.
Musculoskeletal
Joint, Muscle & Bone Health
Estrogen plays a critical role in maintaining bone density and joint health. As levels decline, joint stiffness, muscle aches, and increased injury recovery time are common. Bone density loss accelerates significantly in early postmenopause.
Urogenital
Urinary & Vaginal Health
Often the least discussed but among the most impactful domains. Declining estrogen affects the tissues of the urinary tract and vagina, leading to dryness, discomfort, increased UTI frequency, and urgency. These symptoms often worsen over time without treatment.
Menstrual
Cycle Regularity & Flow
Cycle changes are often the first measurable sign of perimenopause. Lengths become irregular, flow varies dramatically, and eventually periods space further apart before stopping entirely. This domain is foundational to STRAW+10 stage classification.
Skin
Skin & Hair Changes
Declining estrogen reduces collagen production and skin hydration, leading to dryness, itching, and thinning hair. These symptoms are frequently reported but rarely tracked. The skin domain captures changes that often precede or accompany other perimenopause symptoms.
Know exactly where you are — not approximately.
STRAW+10 stands for Stages of Reproductive Aging Workshop, and the “+10” refers to the 10 years of research that refined the original framework. It's the clinical gold standard for classifying where a woman is in her menopausal transition. Endocrinologists and reproductive specialists use it worldwide.
Traditionally, STRAW+10 classification requires a clinician to review menstrual history and hormone panels manually. Kairos™ automates this by analyzing your longitudinal symptom and cycle data, applying the STRAW+10 criteria algorithmically, and producing a classification with a confidence score.
When your classification changes — say, from Early to Late Perimenopause — Kairos™ flags it as a stage transition event and alerts your provider. This is the kind of clinical intelligence that used to require months of retrospective analysis.
Clinically significant moments, automatically detected.
A Kairos Event™ is a statistically meaningful shift in your health data. Not a bad day — a real, sustained change that warrants clinical attention. Kairos™ monitors five specific event types, each tied to a well-defined clinical pattern.
Symptom Burden Spike
Your overall symptom burden -- the composite of all domain scores -- has increased significantly over a sustained period. This isn't one bad week; it's a measured, multi-week escalation across multiple domains.
Often signals the beginning or acceleration of the menopausal transition. Your provider may recommend hormonal testing, treatment initiation, or treatment adjustment.
Vasomotor Onset
Your vasomotor domain score has exceeded the clinical threshold and stayed there for at least 14 consecutive days. This marks the beginning of sustained hot flash and/or night sweat activity.
A defining feature of the menopausal transition. Triggers a review of treatment options -- hormone therapy, non-hormonal medications, and lifestyle interventions.
Sleep Quality Decline
A sustained, measurable drop in your sleep quality scores that isn't explained by a single disruption. Your sleep domain has declined significantly over three or more weeks.
Chronic sleep disruption accelerates every other menopausal symptom and carries independent health risks. Often correlates with vasomotor escalation.
Cycle Variability Jump
Your menstrual cycle lengths have become significantly more variable than your established baseline. Cycles are deviating by 7+ days from your norm, consistently.
One of the earliest objective markers of perimenopause. Changes STRAW+10 classification input data. May trigger stage reclassification.
Urogenital Worsening
Your urogenital domain scores have worsened progressively over a sustained period. Symptoms like dryness, discomfort, and urinary urgency are intensifying.
Urogenital symptoms typically worsen without treatment and don't resolve on their own like vasomotor symptoms sometimes do. Early intervention significantly improves outcomes.
• Sleep Quality Decline — Dec 3, 2025
Everything your doctor needs. Nothing they don't.
Kairos™ doesn't dump raw data on your provider. It synthesizes your entire tracking history into a structured clinical summary designed for the realities of modern healthcare: limited time, high complexity, and the need for actionable information. Your doctor sees your stage, your events, your trends, and AI-generated clinical notes — in under two minutes.
Your transition is already happening. Start measuring it.
The earlier you begin tracking, the more data Kairos™ has to detect your patterns, classify your stage, and generate meaningful intelligence for your provider. Every day of data makes the picture clearer.