Yuvix Knowledge Base

Cycle health, body literacy & data privacy

Evidence-based guides to understanding your menstrual cycle, interpreting your own symptoms, and keeping sensitive reproductive health data safe from third-party trackers.

9 In-Depth Guides
Primary Sources Cited
Zero Third-Party Trackers
Clinical Review Included

All Guides & Resources

Organised by application: lifestyle, medical visits, data safety, and choosing software.

Illustration of active movement and energetic cycle tracking
Lifestyle & Movement 6 min read

Exercise by Cycle Phase

What the clinical research shows so far, sample activity for each phase, and how to adjust for cramps, heavy bleeding, or PMS.

Doctor consultation desk with cycle health summary clipboard and stethoscope
Doctor Visit & Records 8 min read

How to Prepare Your Cycle Records for a Doctor Visit

What to record, how to summarise three months, a sample summary template, and red-flag symptoms that need prompt care.

Smartphone displaying a secure privacy shield icon with botanical leaves representing encrypted health data
Data Privacy & Security 9 min read

Is a Period Tracker Safe for Your Health Data?

What period apps collect, the risks to check for, how to read Apple and Google privacy nutrition labels, and a step-by-step audit.

Illustration of peaceful night exploration and cycle calendar landscape
Buyer's Guide 10 min read

How to Choose a Period Tracker

A feature checklist, how to test a free trial, how to judge prediction accuracy over three cycles, and an objective scoring worksheet.

Yuvix cycle tracking screen showing cycle length calculation
Cycle Basics 8 min read

How to Calculate Your Menstrual Cycle Length

A step-by-step method to count your cycle length from day 1, what clinical ranges (21–35 days) mean, and how to read cycle variability.

Blooming lotus with pure morning dew drop symbolizing natural fertility and ovulation signs
Fertility & Ovulation 9 min read

Cervical Mucus Stages and Ovulation Signs

How rising estrogen transforms cervical fluid into stretchy raw-egg-white mucus, how to check it, and how to spot your peak fertile window.

Woman resting peacefully on sofa hugging pillow during premenstrual self care
Mental Health & Hormones 9 min read

PMS vs PMDD: Differences, Severe Symptoms & Tracking

How to distinguish standard PMS from Premenstrual Dysphoric Disorder, DSM-5 diagnostic rules, biological causes, and prospective daily charting.

Basal body temperature digital thermometer on bedside table next to cycle chart and warm tea
Fertility Awareness & BBT 9 min read

Basal Body Temperature: How to Chart & Confirm Ovulation

A step-by-step clinical guide to morning temperature shifts, drawing coverlines, the 3-high rule, and pairing BBT with cervical fluid.

Experience Private Cycle Tracking

Track your cycle with calm confidence & absolute privacy

No mandatory cloud accounts. No advertisement trackers or data broker syndication. Your personal cycle data stays encrypted on your device where it belongs.

✓ On-device encryption ✓ Biometric app lock ✓ 100% Ad-free