PeriTrack Insights – Perimenopause & Hormone Health Articles
Evidence-based articles about perimenopause, hormones, blood tests and metabolic health. Understand your lab results and take action.
- What Is Perimenopause — and Why Everything Starts Changing Before You Expect It — Most women are told about menopause. Almost no one explains perimenopause — the years where everything already starts shifting. This guide explains what is actually happening in your body.
- Which Blood Tests Should You Get During Perimenopause? — A practical guide to the most important lab markers for women in perimenopause and what your results actually mean.
- Low Ferritin: The Hidden Cause of Fatigue and Hair Loss in Women — Why your ferritin levels matter more than your hemoglobin – and what to do when your doctor says your iron is "fine".
- Understanding Estradiol Levels During Perimenopause — What your estradiol levels really mean, why they fluctuate so much, and when to test for the most reliable results.
- Perimenopause Weight Gain: Why It Happens (and What Actually Works) — Perimenopause weight gain is driven by hormonal shifts — not a lack of discipline. Learn the science behind it and what evidence-based strategies actually work.
- Hair Loss in Perimenopause: Causes, Hormones, and What Actually Works (Female Hair Thinning in Your 40s Explained) — Female hair loss in your 40s rarely has a single cause. It’s the interplay of hormones, iron stores, thyroid function, and time — and that’s exactly what makes it so hard to figure out.
- How to Lose Belly Fat During Perimenopause (What Actually Works) — Belly fat during perimenopause is driven by hormonal shifts — not lack of effort. Learn why it accumulates and what science-backed strategies actually reduce it.
- Insulin Resistance in Perimenopause: Why It Happens (and How to Reverse It) — Insulin resistance in perimenopause is driven by hormonal changes — not just diet. Learn why it develops, how it connects to belly fat, and what evidence-based strategies can reverse it.
- Why You Feel Hungry All the Time in Perimenopause (And What Your Body Is Trying to Tell You) — Constant hunger during perimenopause is hormonal — not lack of discipline. Learn why appetite increases, what drives cravings, and how to stabilize your metabolism.
- Which Blood Tests for Hair Loss in Women? (And Why Most of Them Don't Help) — You've done the tests. Everything came back "normal." And yet — the hair keeps falling out. The problem isn't missing data. It's how that data is interpreted.
- Thyroid Hair Loss in Women: Why Your TSH Can Be "Normal" — and You're Still Losing Hair — Your TSH came back normal. But your hair is still thinning. The answer lies not in TSH — but in how your thyroid hormones are converted, and what else is shifting at the same time.
- DHT and Female Hair Loss: Why Your Testosterone Is "Normal" — But Your Hair Is Thinning — Your testosterone came back normal. But your hair is still thinning. The answer lies not in how much testosterone you have — but in how your body is handling it.
- Brain Fog in Perimenopause: Why You Feel Like a Different Person (and What's Actually Happening) — Brain fog in perimenopause is not a sign of decline — it is a sign of system change. Learn what actually causes it and why tracking patterns over time changes everything.
- Why You Wake Up at 3AM in Perimenopause (and Why It Feels Impossible to Fall Back Asleep) — Night waking in perimenopause is not random. It is driven by cortisol shifts, progesterone decline, blood sugar drops, and nervous system activation. Understanding the pattern is the first step to breaking the cycle.
- Anxiety in Perimenopause: Why You Suddenly Feel Different — and What Your Body Is Trying to Tell You — Anxiety in perimenopause is not a character flaw — it is a system signal. Learn what actually drives it and why understanding the pattern changes everything.
- Brain Fog at Work in Perimenopause: Why You Feel Like You're Falling Behind (and What's Actually Happening) — Brain fog at work during perimenopause is not a loss of intelligence — it is a temporary disruption in cognitive performance. Learn what drives it, why the workplace amplifies it, and how to navigate it.
- Brain Sensitivity in Perimenopause: Why Everything Suddenly Feels Like Too Much (and What's Actually Happening) — Brain sensitivity in perimenopause is a system-level shift where your brain becomes more reactive to internal and external changes. Learn why everything feels amplified — and what's actually driving it.
- Skin Aging in Perimenopause: Why You Suddenly Look Different — and What Your Body Is Trying to Tell You — Skin aging in perimenopause is not just a function of time. It is driven by hormonal instability, collagen loss, cortisol, sleep disruption, and metabolic shifts — and it often feels sudden because it is.
- Perimenopause Test: Why There Isn’t One — and What Actually Helps — There is no single test that confirms perimenopause. The transition is identified through symptoms, patterns, and changes over time. Here’s what actually helps you understand what’s happening.
- Perimenopause and Surgery: What to Know Before You Plan a Procedure — Surgery during perimenopause is not just about the procedure — it’s about the condition of your body going into it. Hormonal instability, low ferritin, thyroid imbalance, and sleep disruption all influence healing.
- Perimenopause Symptoms: The Complete Guide — Why They Happen, What They Mean, and Why They Often Feel So Random — Perimenopause symptoms are not random. They are driven by hormonal instability affecting the brain, metabolism, nervous system, skin, and more. Understanding patterns over time is more valuable than single observations.
- Rare Perimenopause Symptoms: The Ones No One Connects (Dizziness, Gum Recession, Joint Pain Explained) — Dizziness, gum recession, tingling, joint pain — many confusing perimenopause symptoms are connected through one mechanism: hormonal instability affecting multiple systems at once.
- Longevity in Perimenopause — and Why the Most Effective Levers Cost Nothing — Longevity in perimenopause does not need 20 supplements or daily training. The best-evidenced levers cost nothing — and matter more than any pill on the shelf.
- Low Progesterone: Symptoms, Levels and What Is Really Behind It — Restless nights, 3 a.m. wake-ups, shorter cycles, breast tenderness: how to recognise low progesterone, when to test, and which value actually means something.
- Low Estrogen: Symptoms, Levels and the Gap Between Normal and Optimal — Hot flashes, joint pain, brain fog, dry skin: which symptoms point to low estrogen, which estradiol level sits behind them, and why "normal" is not the same as good.
- Is My HRT Working? How to Tell If Your Hormone Therapy Is Dialled In — You started HRT — but how do you know it is actually working? Why a single blood value cannot tell you, and what to do when you barely feel a difference.
- The 4 Phases of Menopause: How to Tell Where You Are — Premenopause, early and late perimenopause, postmenopause: how the four phases differ in cycle pattern, symptoms and lab values — and why a single value cannot place you.
- Joint Pain in Perimenopause: Why Everything Suddenly Feels Stiff — Morning stiffness, aching fingers, shoulders and knees — without injury, without arthritis. Why joint pain is so common in perimenopause and which values explain the difference.
- Sleep Problems and Night Sweats in Perimenopause — Waking up drenched, lying awake for hours, mornings that feel like a hangover: why sleep breaks down in perimenopause, which values sit behind it and what actually helps.
- Hot Flashes in Perimenopause: Cause, Triggers and Context — Sudden heat, a flushed face, a wave of sweat — then chills. What actually happens in the body, which triggers are measurable, and why hot flashes are more than an inconvenience.
- Heart palpitations in perimenopause: causes and context — Racing heart, skipped beats, restlessness out of nowhere. What drives palpitations hormonally, which labs give context, and when a racing heart needs medical review.
- Low Libido in Perimenopause: Why Desire Disappears — and What Is Behind It — No desire, no arousal, plus dryness and pain: low libido in perimenopause has more layers than "just hormones". Which values help, and what actually works.
- Heavy and Irregular Bleeding in Perimenopause: What Is Normal and What Is Not — Cycles of 21 days, then 45. Bleeding like a flood, clots, doubling up on protection. Why this is so common in perimenopause, where the red lines are, and which values belong in the picture.
- Constant Fatigue in Perimenopause: When Sleep Stops Restoring You — Eight hours of sleep and still exhausted. Why fatigue in perimenopause rarely has one cause, which five values you should know, and how to tell exhaustion from sleep debt.
- Irritability and Mood Swings in Perimenopause: When Patience Disappears — Zero to sixty over something trivial, then guilt. Why irritability in perimenopause is not a character flaw, what progesterone has to do with it, and how to make the pattern visible.
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