Notice changes
Know what’sdifferent for you.
Build a personal baseline and record changes in memory, focus or brain fog while they’re fresh.
See how Parva worksCognitive health care that stays with you
Direct access to
your care team,
whenever something changes.
A medication change that is not working, a week of brain fog, a question that cannot wait for the next appointment — reach your care team, and reach your clinician through them.
Backed by
Y Combinator
TechCrunchResearch roots
University of Washington
Johns HopkinsYou know when you feel different
You shouldn’t need perfect words to betaken seriously.
You’re not imagining it.
A single appointment can miss what has been unfolding for weeks—and many changes run on cycles of 30 to 60 days, far longer than one visit can see. Parva turns “I just feel off” into a record of what changed, when it changed and what else was happening.
The fog appeared twice—at the same point in two different weeks.
Most days stayed in your usual range.
Example only · association observed, cause not determinedHow Parva can help
Understand what changed.
Bring a clearer picture into care.
Parva helps you capture changes in memory, focus or brain fog, see them alongside your health context and build a record you can share with your clinician.
Connect context
See what may beconnected.
Compare symptoms with sleep, medications, routines and health history without assuming cause.
See health context
Prepare for care
Bring a clearer storyinto care.
Give your clinician a timeline of what changed, when it happened and what else was going on.
See care supportWhat you can bring to Parva
Start with the cognitive changeyou’re noticing.
ADHD is a starting point. Parva can also help you follow changes in focus, memory, mental clarity and cognitive energy—then place the health and life context you choose beside them.
Many reasons to arrive. One personal record.
How Parva works
Three steps.
One cycle that keeps improving.Built around you.
Connect your phone, see your patterns, talk to your clinician. Your plan adjusts, you keep checking in, and each loop makes the picture clearer.
Connect your phone
Check in from the phone already in your hand
A quick check-in in your own words, with the sleep, medication and context you want kept beside it.
See your patterns
See what repeats against your own history
Parva compares each moment with your usual range and shows what changed, when, and what else was happening.
Talk to your clinician
Bring the pattern into care and adjust together
Your clinician sees the same record. The plan changes, you keep checking in, and the cycle continues.
Step two, in practice
A quick check-in becomesa pattern you can discuss.
01
You record what changed.A quick check-in, in your own words.
Lower clarity and later sleep appeared together on 4 of 6 recent check-ins.
Personal comparisonCompared with your previous 26 days
- Based on
- 6 check-ins · 26-day history
- Context kept beside it
- Sleep timing · member added
Evidence boundaryAssociation observed. Cause not determined.
02
Parva finds what repeats.Across your history, with the source and limit attached.
Support between visits
The care conversation does not have to wait.
Stay supported in between.
Between appointments is where most of a month happens. With Parva through your clinic, that time is part of your care too.
- A direct line to a real care contactSomeone who already knows your record.
- Your symptoms reach your doctor automaticallyLog them once; they travel with your record.
- Coaching between visits, directed by your clinicianToward the goals you choose together.
- Medication changes, followed closelyYour team hears how you are responding, not just that you are.
- Priority scheduling when something changesEarlier contact when the pattern shifts.
- Arrive prepared, with your month already written downNo reconstructing weeks from memory.
Talk to your clinic about ParvaAvailability depends on your clinic. On your own, you keep the record and the coaching.
Your clinic’s care teamBetween-visit check-in
AvailableI saw your note about brain fog after the medication change. Would you like to check in before your next visit?
Yes. I want to track it this week and make sure my clinician sees the pattern.
One connected system
With you in the moment.
Useful over time.
Parva works across phone, desktop and web so your health story does not depend on what you can remember in one appointment.
My ParvaToday
Good morning, Maya
What changed
Your mental clarity was lower than usual on 4 of the last 6 days.
This falls outside your recent reported range. Parva keeps your check-ins, observed activity and the limits together.
Personal baseline
Mental clarity compared with your reference
Jul 30–Aug 05 · EDT · 6 of 7 check-insObservedPersonal referenceOutside referenceCould not assess
| Date | Value | Reference | Status |
|---|---|---|---|
| Jul 30 | 5.5 / 10 | 6–8 | Outside reference |
| Jul 31 | 6.5 / 10 | 6–8 | Inside |
| Aug 01 | — | 6–8 | Could not assess · check-in not reported |
| Aug 02 | 5.8 / 10 | 6–8 | Outside reference |
| Aug 03 | 5.2 / 10 | 6–8 | Outside reference |
| Aug 04 | 6.8 / 10 | 6–8 | Inside |
| Aug 05 | 5.0 / 10 | 6–8 | Outside reference |
Patterns
Three records worth returning to.
Each pattern keeps its source, comparison and limits visible.
Mental clarity dips earlier
Review4 of 6 reported days · compared with 26-day reference
Morning recall remains stable
Stable11 of 13 reported days · 91% coverage
Evening cognition could not be assessed
Incomplete2 recent days · insufficient check-ins
Health record
Keep your experience beside the record.
Reported context remains separate from observed activity.
Care
A bounded record for a better conversation.
You decide when this leaves Parva.
Prepared recordMental clarity pattern · Jul 08–Aug 05
Ready- Observation
- Mental clarity was lower than usual on four of six recent reported days.
- Personal reference
- Compared with the previous 26 reported days.
- Context
- Later sleep timing and higher meeting load, added separately.
- Limit
- Association observed. Cause not determined.
Reports
Records prepared for a specific conversation.
Every report retains its source, personal comparison, missingness and limit.
Mental clarity summary
ReadyJul 08–Aug 05 · personal reference v1 · updated today
Sleep and energy context
DraftDraft · two member-entered notes need confirmation
Clarity you can use
Understand the pattern.Shape what comes next.
Lower clarity followed later sleep on 2 of 2 lower-clarity days.
Across the last four weeks, most days stayed in your usual clarity range.
4-week daily viewUsual clarityLater sleepLower clarity
1
2
3
4
In weeks 2 and 4, later sleep on Wednesday was followed by lower clarity on Thursday.
2 of 2lower-clarity days followed later sleep
This is an observed connection. It does not show that later sleep caused lower clarity.
Try this weekWind down 30 minutes earlier on Wednesday.
Open patternClinicians in the loop
Bring more than“I’ve just been feeling off.”
Parva prepares the useful parts of your story for care, so a clinician can review the same pattern, context and evidence boundaries with you.
- Be seenYour experience arrives with the timeline around it.
- Be understoodA clinician sees the same sources and limits you do.
- Keep goingTrack what changes between appointments and next steps.
AR
Review completeDr. RiveraParva care team
Clinician note
“This pattern is clear enough to discuss at your next visit.”
- Evidence
- Good
- Next step
- Review sleep timing
- Follow-up
- Aug 12
Questions, answered plainly
Looking more closely can feel scary.Knowing what to expect helps.
Parva is built to make your health feel more understandable—not more alarming.
How soon will I see a personal pattern?
Your baseline begins forming from your first eligible days. It becomes more useful as evidence accumulates, and Parva shows when a comparison is ready or when there is not enough information yet.
Does Parva diagnose me?
No. Parva shows observations, personal comparisons and possible associations with clear limits. A clinician helps interpret what the record may mean for your care.
What can I share with a clinician?
You can review a prepared record containing the change, your personal comparison, relevant context and evidence limits before it becomes part of a care conversation.
Illustrative member stories
Your story,clearly heard.
See what becomes possible when change, context and lived experience stay together over time.
Making the change visible
“I stopped trying to reconstruct the month from memory. I had a clearer record of what changed—and when.”
Stories are illustrative composites; portraits are not real members.
Laptop view selected
Parva membership
Your cognitive health,
connected over time.
Parva helps you understand your cognitive health over time and brings that understanding into the choices and care conversations that matter.
Join ParvaMembership includes
- Connected phone, desktop and web experiences
- Your personal cognitive baseline and change tracking
- Symptoms, medications, health records and assessments in one longitudinal record
- Record-grounded answers and a personalized care plan
- Care records prepared for clinician review and follow-up