Your heart's rhythm
tells a story.
Ziva reads it daily.
AFib episodes are unpredictable and often silent between appointments. Ziva's AI coach Isabella monitors your heart rate irregularity, HRV, sleep, activity, and triggers every day - so you and your cardiologist always have the full picture, not just a snapshot.
Used by people managing AFib alongside their care team.
Ziva Health is an AI-powered health companion for managing conditions like AFib through daily tracking and personalised coaching. Isabella is Ziva's AI health coach - she reads your heart rhythm data, HRV, sleep, and activity every day and tells you what's happening and what's driving your episodes.
Three steps to understanding your AFib.
Every signal AFib leaves
in your daily data.
AFib episodes leave measurable traces across heart rhythm, HRV, sleep, and recovery. Ziva captures all of these automatically from your wearable every day - and Isabella connects them into a picture your cardiologist can act on.
AFib isn't one event.
It's a pattern - visible in your data.
Paroxysmal AFib comes and goes - often silently. Between appointments, episodes occur, triggers stack up, and medication adherence slips. Ziva captures all of it. Isabella connects the dots so you and your cardiologist have the full picture, not just the snapshot from your last visit.
Episodes your doctor
would never otherwise see.
Paroxysmal AFib episodes last minutes to hours and often occur at night or at rest - long after your wearable data is collected. Isabella reads your rhythm data every day and flags every episode: when it started, how long it lasted, and what was happening beforehand.
Your HRV predicts
your next episode - days ahead.
Low HRV in sinus rhythm is one of the strongest predictors of AFib recurrence. Ziva tracks your HRV daily during normal rhythm periods and builds a personal baseline - so Isabella can flag when you're entering a high-risk window before an episode occurs.
Your anticoagulant
only works when you take it.
Missing anticoagulant doses - even one - significantly increases stroke risk in people with AFib. Ziva tracks your medications daily alongside your episode data, so your cardiologist can see whether gaps in adherence correlate with increased AFib burden.
Isabella builds your AFib
management routine around your triggers.
Not a generic checklist - a daily routine shaped by what your data shows is actually triggering your episodes: when to exercise, what to avoid, how to manage stress, and how to take your medications consistently.
What the science says.
Every Ziva feature for AFib is grounded in peer-reviewed evidence - Isabella explains the mechanism, not just the metric.
Your cardiologist needs
30 days of data,
not one ECG.
AFib is managed on trends and burden - not snapshots. Ziva gives your cardiologist 30 days of episode data, HRV, medication adherence, and trigger correlation in a clear report they can review in minutes.
What is atrial fibrillation?
Atrial fibrillation (AFib or AF) is the most common serious cardiac arrhythmia, affecting over 37 million people worldwide. It occurs when the heart's upper chambers (atria) beat chaotically and out of coordination with the lower chambers (ventricles), producing an irregular and often rapid heart rhythm. This electrical chaos prevents effective atrial contraction, allowing blood to pool - particularly in the left atrial appendage - creating clots that can travel to the brain and cause stroke.
Types of AFib
Signs and symptoms
- →Palpitations — fluttering, racing, or irregular heartbeat sensation; often the first noticeable symptom
- →Fatigue — the inefficient atrial contraction reduces cardiac output by 10–30%, causing significant tiredness
- →Shortness of breath — especially during activity or when lying flat; a sign of reduced cardiac efficiency
- →Dizziness or lightheadedness — particularly at episode onset when rhythm suddenly changes
- →Chest discomfort — pressure or tightness during AFib episodes; always investigate with a cardiologist
- →No symptoms — up to 30% of AFib episodes are completely silent; detected only by continuous monitoring or incidental ECG
Risk factors and triggers
- →Alcohol — the most potent modifiable trigger; even moderate drinking (1–2 drinks/day) significantly increases burden
- →Hypertension — the leading structural risk factor; elevates atrial pressure and promotes electrical remodelling
- →Obesity — adipose tissue around the heart promotes inflammation and structural remodelling of the atria
- →Sleep apnea — nocturnal oxygen drops trigger sympathetic surges that initiate AFib; treating OSA reduces burden significantly
- →Stress and poor sleep — cortisol and adrenaline disrupt the autonomic tone balance that maintains sinus rhythm
- →Excessive endurance exercise — "athlete's heart" and years of high-intensity training structurally enlarge the atria, increasing lifetime risk
Consequences of uncontrolled AFib
- →Stroke — 5× higher risk; AFib-related strokes are more severe and more likely fatal than non-AFib strokes
- →Heart failure — sustained rapid ventricular rates from AFib cause tachycardia-induced cardiomyopathy over time
- →Progression to permanent AFib — paroxysmal AFib remodels the atria electrically and structurally; without intervention, it typically progresses
- →Dementia — growing evidence links AFib to vascular cognitive impairment through subclinical microemboli and reduced cerebral blood flow
What people ask.
Ziva Health is a wellness and health-coaching app. It is not a medical device and does not diagnose AFib or any other cardiac condition. All content is for informational purposes only. Always consult a qualified cardiologist or healthcare professional for medical decisions about AFib management. Never stop or adjust cardiac medications without clinical supervision.
Stop guessing
what's triggering
your episodes.
Isabella reads your heart rhythm every day and gives your cardiologist 30 days of AFib burden, HRV trend, medication adherence, and trigger data - so appointments are actually informed.
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