Home - Learn

HeyTimi Learn

PCOS & PMOS, explained in plain language.

Short, practical guides to what you’re tracking: cycles, symptoms, hormones, sleep and metabolic health. No jargon walls, no scare stories.
Learn PCOS in Plain Language

Short, practical guides to what you’re tracking: cycles, symptoms, hormones, sleep and metabolic health. No jargon walls, no scare stories.

All articles

PCOS tracker
PCOS Acne

PMOS/PCOS Acne: Why It Happens

Learn how androgens, insulin resistance and inflammation may contribute to PCOS/PMOS acne, and why effective treatment can involve both skincare and hormonal care.

2 Min Read

berberine for PCOS

Berberine and PCOS/PMOS: What to Know

Is berberine effective for PCOS/PMOS? Explore the latest 2026 evidence, potential metabolic effects, safety concerns, and how it compares with metformin.

2 Min Read

metformin for PCOS

Metformin and PCOS/PMOS: What Does It Do?

Learn how metformin may support metabolic health in PCOS/PMOS, what the latest research says about hormones and cycles, and which side effects to know.

-30 Min Read

Myo-Inositol vs D-Chiro-Inositol

Myo-Inositol vs D-Chiro-Inositol: What Is the Difference?

Understand the differences between myo-inositol and D-chiro-inositol, what the 40:1 ratio research shows, and what remains uncertain about inositol for PCOS/PMOS.

2 Min Read

Inositol for PCOS

Inositol for PCOS: What Does the Research Say?

What does research say about inositol for PCOS/PMOS? Learn about myo-inositol, D-chiro-inositol, the 40:1 ratio and the limits of current evidence.

2 Min Read

Spearmint Tea and PCOS

Spearmint Tea and PCOS: What Does the Evidence Say?

Does spearmint tea lower testosterone in PCOS? Explore clinical trial findings, studied intake, realistic expectations, safety considerations and the limits of current evidence.

3 Min Read

Can Supplements Help PCOS

Can Supplements Help PCOS/PMOS?

Supplements are often promoted as a natural way to balance hormones, improve insulin sensitivity or restore ovulation. But which ones have meaningful evidence for PCOS/PMOS?

2 Min Read

why does PCOS cause irregular periods

Why Does PCOS Cause Irregular Periods?

Discover why PCOS/PMOS can disrupt ovulation and menstrual cycles, how hormones affect follicle development, and when irregular periods need medical attention.

2 Min Read

PCOS and Blood Sugar

PCOS and Blood Sugar: What Is the Connection?

Understand how insulin resistance connects PCOS/PMOS with blood sugar regulation, androgen production and metabolic health, plus practical ways to build balanced meals.

2 Min Read

Can You Have PCOS With No Symptoms?

Can You Have PCOS With No Symptoms?

Can you have PCOS/PMOS without obvious symptoms? Learn how diagnosis works, why ultrasound findings alone are not enough, and when metabolic screening matters.

2 Min Read

Is Acne a Sign of PCOS?

Is Acne a Sign of PCOS?

Find out whether acne can be a sign of PCOS/PMOS, how androgens influence the skin, and when persistent breakouts deserve a closer look.

2 Min Read

PCOS Symptoms

PCOS Symptoms That Are Easy to Overlook

Discover overlooked PCOS/PMOS clues, from darkened skin folds and sleep disturbances to scalp hair thinning, and learn when to seek medical advice.

2 Min Read

What Does PCOS Actually Feel Like?

What Does PCOS Actually Feel Like?

Living with PCOS, also known as PMOS, can mean dealing with physical symptoms that are visible to others, alongside experiences that are much harder to explain.

2 Min Read

Signs of PCOS

What Are the First Signs of PCOS/PMOS?

For some people, the first clue is that periods gradually become less predictable. For others, it may be new acne, increased facial or body hair, scalp hair thinning, or difficulty ovulating.

2 Min Read

Can You Have PCOS Without Irregular Periods?

Can You Have PCOS Without Irregular Periods?

A predictable menstrual cycle is useful information, but it does not tell you everything about your hormone profile or whether ovulation is occurring consistently.

2 Min Read

PMOS Symptoms

PMOS Symptoms: What We Know About the New Terminology

Learn the key multi-system of PMOS symptoms, from post-meal brain fog to adrenal fatigue, and why focusing on metabolic signals changes your care.

2 Min Read

Cysts

Does PMOS Mean You Have Ovarian Cysts?

The word “polycystic” in the former name, PCOS, can make the condition sound like it is defined by ovarian cysts. It isn't.

2 Min Read

What Does PMOS Stand For?

What Does PMOS Stand For?

Learn what PMOS stands for, why endocrinologists are moving away from PCOS, and how this name shift impacts your metabolic care.

2 Min Read

PCOS vs PMOS

PCOS vs PMOS: What Is the Difference?

If you have been diagnosed with PCOS and are suddenly seeing the term PMOS, you may be wondering whether you have a different condition.

6 Min Read

Why Sleep Is a Hormone Helper

Why Sleep Is a Hormone Helper

2 Min Read

Stress and Your Hormones

Stress and Your Hormones: The Cortisol Steal

Learn how chronic stress disrupts your endocrine system through the "pregnenolone steal," driving progesterone drops, anxiety, and irregular cycles.

2 Min Read

40:1 Inositol Ratio Explained

The 40:1 Inositol Ratio Explained

If you have PMOS/PCOS, you may have come across supplements containing myo-inositol (MI) and D-chiro-inositol (DCI), often in a 40:1 ratio.

2 Min Read

Adrenal PCOS/PMOS

Adrenal PCOS/PMOS vs. Insulin-Resistant PMOS

One person may struggle mainly with insulin resistance, intense cravings, and post-meal crashes. Another may have more prominent adrenal androgen elevation, stress sensitivity, and sleep disruption.

2 Min Read

PMOS

Why Did My Doctor Say PMOS?

PMOS is the new name for the condition previously known as Polycystic Ovary Syndrome (PCOS). The name changed because PCOS did not accurately describe what was happening inside the body.

2 Min Read

Protein-First Breakfast Rule for Hormone Balance

The Protein-First Breakfast Rule for Hormone Balance: Cortisol and Insulin Interactions

Learn why eating 30g of protein within 60 minutes of waking blunts cortisol spikes, lowers insulin resistance, and stops sugar cravings all day.

5 Min Read

Postprandial Hypoglycemia

Postprandial Hypoglycemia: Why You Suffer Energy Crashes 2 Hours After Eating

Shaky, sweaty, or anxious after eating carbs? Learn how hyperinsulinemia and reactive hypoglycemia cause post-meal blood sugar crashes and how to stop them.

6 Min Read

Sleep Apnea in Women with PCOS

Sleep Apnea in Women with PCOS: The Hidden Driver of Chronic Fatigue and Resistance

Exhausted despite 8 hours of sleep? Learn how silent sleep apnea and UARS affect women with PCOS, drive insulin resistance, and how to get tested.

Luteal Phase Insomnia

Luteal Phase Insomnia: Why Sleep Can Change Before Your Period

Waking up at 3 AM before your period? Discover how progesterone, temperature shifts, and ALLO withdrawal disrupt your sleep architecture during the luteal phase.

6 Min Read

Cortisol Awakening Response

The Cortisol Awakening Response (CAR) and PCOS: Why You Wake Up Tired and Wired

Wake up feeling anxious or exhausted despite 8 hours of sleep? Learn how the Cortisol Awakening Response (CAR) dysregulation affects PCOS and how to support your HPA axis.

6 Min Read

High Cortisol

High Cortisol vs. High Androgens: How to Tell Which Hormone Is Driving Your Symptoms

Struggling with acne, facial hair, or bloating? Discover whether high cortisol or high androgens are driving your symptoms and how to test for DHEA-S vs testosterone.

7 Min Read

Endo Belly and Gut Issues

Endometriosis vs. IBS: How to Tell the Difference Between “Endo Belly” and Gut Issues

Is your IBS actually "Endo Belly"? Learn the key differences between gut issues and bowel endometriosis, why bloating flares at ovulation, and how to track it.

6 Min Read

Endometriosis Pain

What Does Endometriosis Pain Actually Feel Like? (Beyond “Bad Period Cramps”)

Think your period pain isn't normal? Discover what endometriosis pain actually feels like from "lightning bolt" bowel pain to radiating leg aches, and how to track it.

4 Min Read

Cyclical Progesterone Hypersensitivity

Cyclical Progesterone Hypersensitivity: The Biology Behind the Luteal Crash

Normal blood tests but severe post-ovulation brain fog and fatigue? Discover the neurobiology of progesterone sensitivity, GABA-A receptors, and the luteal crash.

6 Min Read

Is It Severe PMS or PMDD

Is It Severe PMS or PMDD? The 7-Day Symptom Tracking Rule

Experiencing severe mood drops, rage, or anxiety before your period? Learn the difference between PMS and PMDD, the DSM-5 criteria, and how to track symptoms.

8 Min Read

PCOS/PMOS Labs Checklist

The PCOS/PMOS Labs Checklist: Exactly What to Request from Your Doctor

Heading to the doctor? checkout our complete PCOS/PMOS lab checklist. Learn exact tests to request, including Free Testosterone, Fasting Insulin, AMH, and LH ratios.

6 Min Read

Lean PCOS

Lean PCOS vs. Typical PCOS: Understanding Your PMOS Root Cause

Think you're too thin to have PCOS? Discover the root causes of Lean PCOS (PMOS), from adrenal stress to inflammation, and learn how to track your patterns.

5 Min Read

Signs of Insulin Resistance

Hidden Signs of Insulin Resistance: Why Your Blood Sugar Looks Normal (And What to Track Instead)

Tired of being told your blood sugar is fine despite daily crashes and fatigue? Discover the hidden signs of insulin resistance and the lab tests you actually need.

Why Did They Rename PCOS to PMOS

Why Did They Rename PCOS to PMOS? The New Medical Guidelines Explained

If you've recently seen the term PMOS on a patient portal, in a news article, or during a healthcare appointment, you might be wondering

6 Min Read

PCOS symptoms

Spotting the Signs: The Full Spectrum of PCOS Symptoms Explained Simply

Maybe you've been dealing with stubborn acne that won't go away, irregular periods, unexpected facial hair, constant tiredness, or hair thinning on your scalp.

6 Min Read

Learn PCOS in Plain Language

PCOS: A Plain-Language Guide to Your Body, Hormones, and Health

Research suggests that up to 75-80% of individuals with PCOS experience some degree of insulin resistance, which can affect people across all body sizes.

6 Min Read

Learn alongside your tracking

Read it here. Notice it in your own history.

HeyTimi pairs short lessons with your daily check-ins, so what you learn connects to what you actually log.

Heytimi QRCode

Scan with your iPhone camera

3 days free trial · iPhone · HeyTimi Pro available monthly or yearly
PCOS Tracker app