Can nicotine dependence cause heart attack?

Nicotine can make the heart work harder and can temporarily tighten arteries, reducing the space available for blood flow. Tobacco smoke adds other substances that injure the artery lining and encourage fatty deposits and clot formation. Dependence may also make repeated exposure difficult to stop, so the cardiovascular system faces ongoing stress. A heart attack happens when blood flow to part of the heart muscle becomes blocked. Nicotine is one contributor; blood pressure, cholesterol, diabetes, family history, and other factors can also affect risk.

If you use nicotine, arrange a clinician-supported quit plan. Options may include nicotine replacement, prescription treatment, behavioural support, and a plan for cravings or withdrawal. Do not stop a prescribed medicine without advice. Tell the clinician about vaping, cigarettes, shisha, smokeless tobacco, and any nicotine products, because the pattern of exposure matters. Managing blood pressure, cholesterol, diabetes, sleep, and activity can further support heart health.

Call emergency services immediately for pressure, squeezing, or pain in the chest, especially with breathlessness, sweating, nausea, faintness, or pain spreading to the arm, back, neck, or jaw. Do not drive yourself. Symptoms can be less typical in some people, so sudden severe breathlessness, unusual weakness, or collapse also warrants emergency help. If symptoms are new but mild or come and go, seek urgent medical advice rather than waiting for a routine appointment.

Ask which quit method fits your nicotine use, whether your blood pressure and cholesterol need checking, and how to recognise withdrawal versus symptoms that need urgent assessment. You can also ask how medicines, pregnancy, mental health, or other conditions may affect a quit plan.