How Lua builds your hormonal profile: what happens in the first 30 days

The most common objection when someone hears about Lua for the first time is: "I don't have time for another app."

It is a reasonable objection. Most health apps start with good intentions and end up becoming an endless list of things to fill out that no one keeps up after the second week.

Lua does not work that way. The daily check-in takes less than two minutes. The food log with a photo takes thirty seconds. And what those minutes build over the course of a month is something you could never have had before: your own hormonal map.

This is what happens in the first 30 days.

Days 1–7: the starting point

On the first day, Lua asks you a few questions to understand your hormonal stage: whether you have an active cycle, whether you are in transition, whether your periods have changed in recent months. It is not a medical questionnaire — it is the minimum context needed for the data to make sense.

Starting on day 1, the daily check-in records five things: physical symptoms (hot flashes, bloating, headache, whatever you are experiencing), sleep quality, energy level, mood, and whether anything specific happened that day. The food log, optional but valuable, records what you eat.

In the first week, Lua does not draw conclusions. It is building the starting point. Logging without expecting immediate results is part of the process — just like when a doctor asks you to keep a symptom diary before your next appointment.

Days 8–14: the first trends

Around the second week, something starts to appear. It is not a diagnosis — it is patterns.

Lua detects whether your sleep is consistently worse on certain days of the week. Whether certain foods come before inflammatory symptoms the next day. Whether your energy has a predictable rhythm throughout the month. The patterns most of us sense but could never confirm.

A concrete example: many women know that they "feel worse" during certain weeks of the month. With two weeks of data, Lua can begin to show whether that feeling correlates with a specific hormonal phase, with sleep in the previous days, or with changes in food.

Intuition becomes data.

Days 15–30: the profile takes shape

After a month of use, you have something no medical visit can generate in a single appointment: a continuous record of your biology in context.

Lua can show you your energy curve across the cycle. Your days of greater mental clarity. Food triggers that correlate with specific symptoms. Sleep patterns that predict how you will feel the next day.

What this means in practice: you stop reacting to isolated symptoms and start understanding the system. Not "I slept badly today." But "I consistently sleep badly on days 18 to 23 of the month, and the data suggests it correlates with higher sugar intake the day before."

That information changes what you can do with it.

The chat that knows who you are

One thing is talking with an AI about hormones in general. Another is talking with an AI that has access to your last four weeks of data.

When your profile is under construction, Lua's chat can answer specific questions: "why does my energy always drop this week?", "what patterns do you see in my sleep from the last month?", "is there anything in what I eat that affects my hot flashes?" Lua answers based on your data, not on population averages.

It is not generic information. It is about you.

What does not change in 30 days

Honesty: a deep hormonal profile takes more than a month. The most precise correlations emerge after 60 or 90 days of continuous data. Lua does not promise revelations in the first week or immediate solutions.

What does change in 30 days is the quality of the information you have about your own body. And with that information, the quality of the decisions you can make — including the ones you bring to a doctor.

What Lua would do with this

The full flow:

You open Lua in the morning or at night. The check-in takes two minutes — symptoms, sleep, energy, mood. If you ate something relevant, you log it with a photo or brief description. Lua analyzes it in the context of your current hormonal phase.

At the end of the week, Lua has a summary: trends, correlations, what changed compared with the previous week. After a month, you have the first draft of your profile.

It is the same principle longitudinal clinical studies use to understand female hormonal biology. Applied to your life, in real time, in less than two minutes a day.

Day 1 is today. Download Lua — free, no email.