THE PCOS BRIEF
Movement / 12-week study
Does Pilates help PCOS period pain?
A 12-week study of 26 women found less pain and shorter cycles
Sachi / The PCOS wellness app
PCOS research.
Room for
real life.
Sachi brings lifestyle research, practical goals, and symptom tracking together in one app for PCOS.
See how Sachi works The iOS app, launching soon
Clarity takes shape. 01 / Sachi Health
The idea behind Sachi
Plenty of advice.
A place to start.
Reading more doesn’t always make the next step clearer. Sachi brings lifestyle research, practical goals, and everyday tracking into one place.
01 / Made for the everyday
Big picture.
Small steps.
Track what matters to you.
Choose the symptoms and everyday experiences you want to record, from cycle changes to energy, mood, and sleep.
Choose a practical goal.
Explore practical goals inspired by lifestyle research. Choose one that fits into your day.
See your history over time.
Review what you’ve recorded and bring that context to conversations with your healthcare provider.
App preview.
Scene 1 of 3. Check in.
02 / Curiosity deserves context
The finding.
The fine print.
The full picture.
Follow the references behind Sachi’s research summaries. Read the study and its limitations for yourself.
See what the study found, and where its limits are.
Read a sample PCOS Brief Before the takeaway
A good question
curiosity.
A good question
is a good
place to start.
- 01
- Who took part?
- 02
- What was measured?
- 03
- What remains uncertain?
curiosity.
The questions we ask when reading a study.
Research can inform a choice.
It doesn’t have to run your life.
03 / The PCOS Brief
The research,
in plain English.
One PCOS lifestyle study each week: what it found, where its limits are, and why it matters.
Browse the PCOS Brief
THE PCOS BRIEF
THE PCOS BRIEF
Movement / Randomized trial
Does interval training lower androgens in PCOS more than steady cardio?
After 12 weeks the free androgen index fell further with intervals
THE PCOS BRIEF
Research / A closer look
Does myo-inositol work as well as metformin if you have lean PCOS?
A trial in women with a normal BMI found both lowered insulin and androgens
04 / Why we’re here
Built from questions
that kept coming up.
We met at Columbia and started with a question: how could lifestyle research become more useful in everyday life? Conversations with people living with PCOS helped shape what Sachi should make easier.
Daniella Tincani Ueki, MBA
Columbia MBA. Building Sachi around the experiences and questions shared in our user research.
Meet Daniella ↗Alishah Khan, MPH
MPH in Epidemiology, Columbia Mailman School of Public Health. Leads Sachi’s research work and writes the PCOS Brief.
Get in touch ↗A few useful answers
Before
you begin.
How is Sachi different from a period tracker?
Sachi includes cycle tracking alongside other symptoms and everyday experiences, such as energy, mood, and sleep. It also brings lifestyle research and practical goals into the same app.
When can I download it, and what will it cost?
We’re preparing to launch on iOS. App pricing and the download link will be available at launch.
Is Sachi medical advice?
No. Sachi shares wellness information and supports tracking. Discuss any changes with your healthcare provider.
How does Sachi handle my information?
Our privacy policy explains how we handle app data, website analytics, and the separate newsletter subscription. Read our privacy policy.
Can I read the PCOS Brief without using the app?
Yes. The PCOS Brief is free to read online or receive by email. You don’t need an app account.
What does the change from PCOS to PMOS mean?
In May 2026, PCOS was renamed polyendocrine metabolic ovarian syndrome (PMOS). You’ll still see PCOS in our newsletter name and earlier articles. Read our guide to the name change.
A new perspective on the everyday
Make room
for you.
Sachi for iOS. Launching soon.
Read the PCOS Brief Downloads and pricing will be available at launch.