Atrial fibrillation, often shortened to AFib, is an irregular heart rhythm. It can increase the risk of stroke and heart failure, but treatment and attention to modifiable risk factors can help many people manage the condition.

AFib is generally managed with medication and, when appropriate, medical procedures. Lifestyle changes do not replace that treatment. They can, however, form a useful part of a clinician-guided plan and may reduce risk factors linked with AFib.

Before you begin

  • Do not stop heart, blood pressure, diabetes or blood-thinning medication without medical advice.
  • Ask a clinician what level of exercise and weight change is appropriate for you.
  • Discuss snoring, interrupted breathing and persistent daytime sleepiness, which can suggest sleep apnea.

1.Manage your weight

Excess body weight is associated with a greater likelihood of developing AFib and can make an existing condition harder to control. If weight loss is appropriate, gradual, sustainable changes are generally more useful than a highly restrictive short-term diet.

Work with your clinician or a registered dietitian to build a plan around your health history, medication and nutritional needs. The aim should be a realistic pattern you can maintain, not a rapid change based on a single measurement.

2.Get moving safely

Regular physical activity supports cardiovascular health, while prolonged inactivity is associated with poorer health outcomes. Walking, cycling, swimming, dancing and gardening are possible moderate-intensity options, depending on your ability and medical guidance.

National activity guidance commonly recommends building toward at least 150 minutes of moderate aerobic activity each week, but that is not a personal prescription. If you have AFib, symptoms, another heart condition or have been inactive, ask your care team how to begin and when to stop.

Controlled practices such as yoga and tai chi may also support mobility, balance and stress management. For additional ideas, see this walking workout and the overview of physical activity guidance.

3.Address sleep-disordered breathing

Obstructive sleep apnea frequently occurs alongside AFib. Loud snoring, witnessed pauses in breathing, waking while gasping, morning headaches and persistent daytime sleepiness are reasons to raise the subject with a clinician.

Assessment matters because treatment should match the cause and severity. Continuous positive airway pressure, or CPAP, is one possible treatment, but it requires professional evaluation and suitable fitting. Read more about sleep apnea causes and treatments.

4.Manage diabetes

Type 2 diabetes is associated with AFib and other cardiovascular complications. If you have diabetes, take prescribed medication as directed and work with your care team on monitoring, food, activity and other parts of your plan.

Blood glucose targets vary according to an individual's health, age, medication and risk of low blood sugar. A clinician should establish the target rather than applying a universal number.

5.Lower high blood pressure

High blood pressure is an important modifiable risk factor for AFib and stroke. A pattern rich in vegetables, fruit, legumes and whole grains, together with appropriate activity, lower sodium intake and weight management where needed, can support blood pressure control.

Measure blood pressure correctly and discuss repeated high readings with a clinician. Medication may be required even when lifestyle habits are strong, and prescribed treatment should not be changed without advice.

6.Avoid smoking and review alcohol

Smoking is linked with cardiovascular disease and a higher likelihood of AFib. If you smoke, ask a healthcare professional about evidence-based cessation support rather than relying on willpower alone.

Alcohol can trigger AFib episodes in some people, and greater consumption is associated with higher risk. Discuss whether reducing or avoiding alcohol is appropriate for your symptoms, medicines and overall health.

Editorial note: This educational overview reflects established risk-factor guidance available through August 2026. Recommendations and individual targets can change; use it to prepare questions for a qualified healthcare professional.