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TRAIL NOTES · CYCLE & HORMONES

Cycle & Hormones.

Train with your hormones, not against them. Your cycle, energy availability, heart rate and the signals worth reading, in plain language you can actually use. For training through perimenopause and menopause specifically, head to our dedicated notes.

Racing on Your Period

01

Racing on Your Period

What changes, what does not, and how to race it well.

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Eat Enough: Energy Availability for Female Runners

02

Eat Enough: Energy Availability for Female Runners

Why many active women are under-fuelled, not under-trained.

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What Your Heart Rate Is Actually Telling You

03

What Your Heart Rate Is Actually Telling You

Read effort and recovery properly, hormones and all.

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Oestrogen and Your Joints

04

Oestrogen and Your Joints

Stiffer knees and hips in your forties may be hormonal, not just the mileage.

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Running Through Perimenopause

05

Running Through Perimenopause: How to Train, Fuel and Recover

Evidence-informed guidance on training, strength, fuelling and recovery through perimenopause without giving up meaningful goals.

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Your Cycle Is Data, Not a Training Calendar

06

Your Cycle Is Data, Not a Training Calendar

Track energy and effort across your cycle instead of guessing at ‘off’ days.

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Hormonal Contraception and the Athlete Inside It

07

Hormonal Contraception and the Athlete Inside It.

What hormonal contraception does, and does not, change about how you train and race.

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Sleep, Hormones and Athletic Performance in Women

08

Sleep, Hormones and Athletic Performance in Women

Why sleep debt hits female physiology harder, and how to protect it through a training block.

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You are Not Declining. You are Adapting.

09

You are Not Declining. You are Adapting.

Menopause changes the terrain. It does not mean your best running is behind you.

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Running on Empty: Iron, Ferritin and Fatigue

10

Running on Empty. Iron, Ferritin and the Fatigue That Does Not Budge.

The fatigue that rest alone will not fix, and what to check before you push through it.

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Strong Bones for the Long Run: A Guide for Female Trail Runners

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11

Strong Bones for the Long Run: A Guide for Female Trail Runners

Members only note.

Fuelling Through Your Cycle and Menopause

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12

Fuelling Through Your Cycle and Menopause

Members only note.

Perimenopause Is Your Second Puberty

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13

Perimenopause Is Your Second Puberty

Members only note.

Running Hotter. Heat, Hydration and Your Hormones.

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14

Running Hotter. Heat, Hydration and Your Hormones.

Members only note.

Women, Hormones and the Ultra Long Run

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15

Women, Hormones and the Ultra Long Run

Members only note.

Stronger Does Not Mean More: The Recovery Dose Women Need in Perimenopause

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16

Stronger Does Not Mean More: The Recovery Dose Women Need in Perimenopause

Members only note.

Sustainable Endurance: How We As Women Should Seek to Evolve Into Longevity

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Sustainable Endurance: How We As Women Should Seek to Evolve Into Longevity

Samantha Gash on why the formula that builds ambitious women in their twenties can break down in midlife, and a framework for capacity that lasts.

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How to Test Your Sweat Rate (and Why Hydration Changes Across Your Cycle)

18

How to Test Your Sweat Rate (and Why Hydration Changes Across Your Cycle)

A step-by-step sweat-rate test, plus how hydration and heat tolerance shift across your cycle and through perimenopause.

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Health Markers Come First: The Foundation Under Every Distance

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Health Markers Come First: The Foundation Under Every Distance

No distance goal sits above your health. When your cycle, iron or bones send signals, that is the work that comes first.

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How to use your Her Trails program across every life stage

20

How to use your Her Trails program across every life stage

This guide shows you how to shape your weekend long runs around your age, hormones and life load so your training stays sustainable through every stage.

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