SokkaiJournal

Any stage

Essentials

Foundational levers that apply wherever you are in your hormonal life — iron, protein, sleep architecture, training, and how to read your own hormone picture. These are the pieces that show up in almost every other article, written once and linked out from every life stage that needs them.

Iron & energy

Ferritin, why 'normal' isn't always enough

Protein & training

Muscle mass across decades

Sleep

Architecture, thermoregulation, recovery

Labs

What to order, when, how to read

6 min

How much protein do you need at each stage of your hormonal life (and how to get it without counting grams)

You don't need to count grams. Here's how much protein women need in pregnancy, perimenopause and after menopause, and a simple way to get it at each meal.

5 min

What Estrogen, Progesterone and Testosterone Do Beyond Your Reproductive System

Sex hormones affect more than reproduction. See what estrogen, progesterone and testosterone do for bone, skin, brain and gut, and how strong the evidence is.

5 min

Why you wake at 3am the week before your period (and what actually helps)

Waking at 3am before your period is common and has likely causes. Here's why it happens and which sleep strategies are worth trying.

5 min

Does hormonal birth control affect muscle growth? What the evidence says about the pill, IUD, and strength training

Most pill users can expect normal strength gains from training, though formulation may matter. See what research says about the pill, IUD, and muscle growth.

6 min

Why core strength matters differently across your hormonal lifespan: pelvic floor, posture, and power from menarche to menopause

Core strength needs shift with hormones: pregnancy loosens ligaments and menopause weakens tissue. Training works at every stage, adapted to your life.

5 min

Why your iron levels drop during menstruation — and how to time supplementation around your cycle

Your body loses iron during your period, with levels lowest during menstruation. Morning dosing on an empty stomach works best—here's when to supplement.

5 min

When to test estradiol, progesterone, and FSH: cycle timing that actually makes results interpretable

Hormone test timing determines whether results mean anything. FSH and estradiol need days 2-5. Progesterone needs 7 days post-ovulation, not day 21.

5 min

How much coffee actually disrupts your cycle — and where the research says the threshold is

Moderate caffeine under 200-300mg daily isn't linked to cycle disruption. The largest hormone study found higher intake tied to fewer anovulatory cycles.

5 min

How estrogen and progesterone actually change your brain chemistry across your cycle

Estrogen and progesterone act as brain chemicals. Learn how progesterone's metabolite enhances GABA and how brain activity shifts across your cycle.

5 min

Why the same meal affects your blood sugar differently across your cycle

Why the same meal can affect your blood sugar differently across your cycle: estrogen improves insulin sensitivity, while progesterone reduces it.

5 min

Why your iron levels look 'normal' but you still feel exhausted — and what ferritin actually tells you about hormone health

Your iron and hemoglobin can be 'normal' while ferritin sits too low for energy, hair growth, and thyroid function. Why lab ranges miss functional deficiency.

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