
Track your brain fog and see what comes before it
Brain fog is hard to explain and even harder to remember on a foggy day. Heylixir is a symptom tracker app that lets you log how foggy you feel in seconds, by voice or tap, next to your sleep, meds, mood and flares, so you can see what tends to come before your foggiest days.

Brain fog is hard to explain, easy to log
Word-finding trouble, losing your train of thought, reading the same line three times: brain fog shows up differently every day and rarely at a convenient moment. By the time you are asked about it at an appointment, the details are gone.
In Heylixir you rate how foggy you feel and add a few words about what it is doing to your day. It takes seconds, so you can log it while it is happening instead of trying to remember it later.
Rate your brain fog with intensity and a short note
Add what it affected: work, conversations, reading
Keep it next to your other symptoms

Spot what comes before your foggy days
Brain fog rarely arrives alone. Poor sleep, a flare, a late dose, a stressful week or a big day out can all play a part. Because Heylixir keeps your sleep, symptoms, mood, meds and journal in one place, you can look back and notice what tends to come before foggy days.
Halo AI points out patterns in your own logs in plain language, so you do not have to dig through every entry. Patterns are not a diagnosis, but they give you something concrete to talk through with your care team.
Sleep and brain fog side by side
Meds and timing next to how clear you feel
Patterns in your own logs, in plain language

Log by voice when the words will not come
Typing through a foggy day is its own kind of hard. With voice tracking you just say how you feel, something like "Foggy since I woke up, could not focus, slept badly, took my meds late", and Heylixir fills in your mood, symptoms, meds and journal for you.
Accuracy may vary by language, accent and how clear your audio is, so give your entry a quick look before you save it. Tracking with Heylixir is meant to be easy, fast and painless, even on hard days.
Log brain fog with your voice
When the fog is thick, typing is the last thing you want to do. Say how you feel in Heylixir and your voice note does the logging for you.
“Foggy since I woke up, could not focus, slept badly, took my meds late.”
Mood: frustrated, foggy
Symptoms: brain fog, fatigue
Medication: taken, noted with the time
Journal: your words, saved as today's entry
See how voice tracking works →
Ready to know what is behind your fog?
Try Heylixir and start logging brain fog in seconds, so you have real patterns to look back on.