The Library

Honest reading on the change nobody prepped you for.

Playbooks, mechanism explainers, and doctor-visit prep — written by Grace, your Menofly AI companion, and fact-checked against published research and clinical sources. No listicles. No affiliate links. Citations at the bottom of every piece.

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3 pieces

The catalog

21 articles · growing
AllPlaybookDeep-diveGuideField noteComparisonData
Playbook·9 min read

Why you wake at 3am (and what actually helps)

The 2–4am wake-up isn't random. Here's the physiology behind it and the seven things worth trying before you ask about a sleeping pill.

Deep-dive·7 min read

Perimenopause vs menopause: the honest map

Where one stops and the other starts, why the language is confusing on purpose, and how to figure out where you actually are.

Playbook·6 min read

How to prep for a 12-minute doctor's appointment

The average GP visit is under 15 minutes. Here's the exact prep that turns that into the most useful conversation you'll have this year.

Deep-dive·7 min read

Hot flashes, decoded

What's actually happening in your body during a flash — and the five levers with the best evidence behind them.

Playbook·6 min read

Brain fog is real — here's what helps

The word-finding pauses, the walking-into-a-room blank. What perimenopause does to cognition, and the tactics that actually move the needle.

Guide·10 min read

HRT basics, without the fear

A calm, current-evidence primer on hormone therapy — what it is, who it's for, and the questions to bring to your clinician.

Playbook·6 min read

Why muscle beats cardio in your 40s

The shift most fitness advice misses: after 40, holding onto muscle protects sleep, mood, metabolism, and bones more than any cardio program.

Guide·5 min read

The protein target most women in their 40s miss

Why the standard guideline is too low for women in perimenopause — and a simple daily target that changes body composition, sleep, and mood.

Field note·5 min read

The joint aches nobody warns you about

New shoulder stiffness, fingers that feel arthritic in the morning, a knee that clicks. It's often hormonal — and it's often reversible.

Deep-dive·6 min read

The libido conversation, minus the shame

What's driving the change, when it's worth a clinical conversation, and what actually restores desire versus what just numbs the topic.

Deep-dive·6 min read

Why weight redistributes to your middle

It isn't a lack of discipline. It's a metabolic shift — and understanding it changes the strategy that works.

Field note·6 min read

Is this anxiety, or is this perimenopause?

New racing thoughts at 2am, chest tightness before things that never used to bother you. When to treat it as anxiety and when to look at hormones first.

Guide·5 min read

Tracking a cycle that no longer behaves

How to log a cycle that's speeding up, skipping, or doing both — and what the pattern actually tells you.

Guide·7 min read

How to talk to your doctor about perimenopause

Most 10-minute visits end with 'you're too young for that.' Here's how to arrive prepared, ask better questions, and leave with a real plan.

Comparison·9 min read

Supplements for perimenopause: what actually works

The supplement aisle is loud. Here's what the evidence says about magnesium, omega-3s, vitamin D, black cohosh, and the rest — plus what to skip entirely.

Deep-dive·8 min read

Brain fog in perimenopause: causes and what helps

Lost words, fuzzy focus, walking into a room and forgetting why. It's one of the most unsettling symptoms — and it's usually temporary.

Playbook·7 min read

Joint pain and perimenopause: why it happens and what to try first

New shoulder stiffness, aching fingers, a hip that clicks. It may feel like aging — but it's often the hormonal shift, and it usually responds to treatment.

Guide·7 min read

Signs perimenopause is ending (and how long this phase lasts)

The transition doesn't end all at once. Here's what the late stage looks like, how long it typically lasts, and what changes once hormones settle.

Deep-dive·8 min read

Perimenopause anxiety: hormone vs. stress, and what calms it

If you feel anxious for the first time in your 40s, it's not just life. Estrogen and progesterone changes directly affect the brain's calm circuits.

Data·6 min read

The 34 symptoms of perimenopause: a checklist

Perimenopause isn't just hot flashes and missed periods. Use this checklist to understand what's hormonal, what's not, and what to track.

Guide·7 min read

Does a perimenopause test exist?

FSH, estrogen, AMH — here's what each hormone test can and cannot tell you, and what a doctor actually uses to diagnose the transition.

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