Smoking and heart failure: what should you know?

Smoke reduces oxygen delivery and exposes blood vessels and heart tissue to chemicals that can raise cardiovascular strain. Heart failure already limits how effectively the heart circulates blood. Together, these effects may contribute to breathlessness, tiredness, cough, palpitations, or swollen ankles. A symptom such as fatigue can occur with many conditions, so it does not by itself establish heart failure. Read more about [Heart Failure](/conditions/heart-failure/) and related [Hypertension](/conditions/hypertension/).

Tell your clinician how much you smoke, whether you use shisha or other tobacco products, and what has made previous attempts difficult. A personalised stop-smoking plan may include behavioural support and suitable medicines. Avoid smoke indoors and ask household members not to smoke near you. Take prescribed heart medicines as directed, keep appointments, and track changes in breathing, weight, or ankle swelling. A [Chronic Disease Review](/treatments/consultations-and-assessment/chronic-disease-review/) can help coordinate follow-up.

Seek urgent medical help for severe or suddenly worsening breathlessness, chest pressure, fainting, new confusion, blue lips, or coughing up pink frothy sputum. Contact your care team promptly if you develop steadily increasing ankle swelling, breathlessness when lying down, a rapid change in exercise tolerance, or persistent palpitations. [Cough](/symptoms/cough/) and [Swollen Ankles](/symptoms/swollen-ankles/) can be useful symptoms to describe clearly.

Ask which stop-smoking support suits your heart condition, whether any medicine needs review, how to recognise fluid build-up, and what symptoms should trigger same-day advice. You can also ask whether your palpitations need assessment or an electrocardiogram.