Library · Evidence note

Body context, with sources.

The research and product boundaries behind ReturnKit's Body context feature: fertile years, trying to conceive, pregnancy, postpartum, perimenopause, menopause, post-menopause, trans / gender-affirming care, and general body care.

Important boundary. ReturnKit is planning support, not medical advice. The Body page organizes user-entered notes, reminders, appointment prep, and exports. It does not diagnose, recommend treatment, interpret symptoms, or replace qualified care.

What ReturnKit is · isn't

Is

A planner for body-aware care admin: your notes, reminders, appointment prep, visit-pack exports, and gentle pacing hints across Work and Study. You choose the context and modules; data stays on your device unless you turn on sync.

Isn't

A medical app. ReturnKit does not diagnose, prescribe, interpret symptoms, predict clinical outcomes, or tell you what treatment to follow. Clinicians decide what your notes mean; ReturnKit helps you show up prepared.

Care here means coordination and preparation, not clinical decision support. Evidence sources below informed safe product categories; they are not user-facing medical recommendations.

What changed in the app

Body now adapts to the context a user chooses. This is a product decision backed by clinical and public-health sources that show different life stages create different care, reminder, and appointment-prep needs.

ContextWhat Body can showWhat ReturnKit must avoid
Fertile years Cycle, contraception notes, PMS / PMDD notes, symptoms around cycle, medication reminders, appointment questions. Promising performance optimization by cycle phase or implying cycle data can diagnose anything.
Trying to conceive Cycle timing notes, fertility-care appointments, questions for clinician, treatment notes, medication reminders. Predicting fertility status, guaranteeing conception timing, or interpreting test results.
Pregnancy and postpartum Appointments, medication notes, recovery, feeding or return-to-work notes, pelvic-floor and movement reminders, support questions. Screening, diagnosing, or replacing midwife, GP, obstetric, psychiatric, or physiotherapy care.
Perimenopause Irregular cycles, sleep, temperature, mood, cognition, joint pain, skin or hair changes, hormone questions, appointment prep. Telling the user they are in perimenopause or recommending HRT or non-HRT treatment.
Menopause and post-menopause Hormone-care notes, genitourinary notes, sleep, bone and strength reminders, metabolic check reminders, screening, medication and appointment prep. Recommending treatment, dose, or screening schedule without local clinician guidance.
Trans / gender-affirming care Hormone schedule, labs, refill reminders, surgery or recovery notes if relevant, anatomy-aware screening reminders, clinician questions. Assuming anatomy from gender, advising hormone dose, or forcing a cycle / menopause model.

Primary sources

These sources justify the categories and safety boundaries. They do not prescribe ReturnKit's exact interface.

Menopause

NICE NG23

Supports menopause and perimenopause framing across symptoms, management, HRT discussion, review, and wider health considerations.

NICE menopause recommendations Used for: perimenopause, menopause, post-menopause modules and appointment-prep boundaries.
Menopause

The Menopause Society

Position statements on menopause hormone therapy and clinical management.

Position statements Used for: individual risk-benefit language and avoiding one-size-fits-all advice.
Fertility

ASRM fertility guidance

Committee opinion on optimizing natural fertility and when clinical evaluation may be appropriate.

Optimizing natural fertility Used for: timing notes and fertility-care appointment prep, not prediction.
Infertility

WHO infertility guideline

Global guidance positioning infertility as a real health-system care domain.

WHO guideline announcement Used for: treating fertility-care admin as valid planning work.
Postpartum

ACOG postpartum care

Postpartum care as an ongoing process, not a single visit.

Optimizing Postpartum Care Used for: postpartum appointment, recovery, and support reminders.
Postnatal

WHO postnatal care

Guidance covering postnatal care for women and newborns.

WHO postnatal care guideline Used for: postpartum as a care phase with follow-up needs.
Gender care

Endocrine Society

Clinical practice guideline resources for endocrine treatment of gender-dysphoric and gender-incongruent people.

Clinical practice guideline Used for: hormone schedule and monitoring as user-entered reminders, never dose advice.

UX rationale

The interface is a design choice. The research tells us the content categories are real. ReturnKit's design system tells us how to present them calmly.

Design

Low-arousal surfaces

Body-care content is sensitive. White cards, light lavender borders, and restrained navy text keep the page readable without making the body feel like a dashboard.

Color

Blue as support, not fill

Saturated blue fields can feel clinical or early SaaS. ReturnKit uses stronger color for focus, borders, icons, selection, and tiny chips, not large body-care surfaces.

Safety

Notes, not diagnosis

The UI invites "what changed, what helped, what to ask" because that is useful for appointments. It does not say what a symptom means.

Last reviewed: 29 June 2026. This page should be reviewed when menopause, fertility, postpartum, or gender-affirming care guidance changes.