Heart attack warning signs

Common warning signs include chest pain or discomfort, often described as tightness, heaviness, or pressure, which can spread to the arms, neck, jaw, or back. Other symptoms include breathlessness, sweating, nausea, and feeling lightheaded or unwell. Women, older adults, and people with diabetes can sometimes have more subtle or atypical symptoms, such as fatigue or discomfort without classic chest pain.

A heart attack occurs when blood flow to part of the heart muscle is suddenly blocked, usually by a blood clot forming on a ruptured fatty plaque within a coronary artery. Risk factors include smoking, high blood pressure, high cholesterol, diabetes, obesity, family history, and lack of physical activity. Sometimes a heart attack occurs without obvious prior warning symptoms, especially in people with previously undiagnosed coronary artery disease.

A suspected heart attack is a medical emergency; every minute of delay in restoring blood flow to the heart muscle can result in further permanent damage. This is why immediate emergency action, calling 999, is critical rather than waiting to see if symptoms pass. Prompt treatment significantly improves the chances of a good recovery and reduces long-term heart damage.

No, while severe chest pain or pressure is a classic feature, some people, particularly women, older adults, and people with diabetes, experience more subtle symptoms such as breathlessness, fatigue, nausea, or discomfort in the jaw, back, or arms without prominent chest pain. This is why any combination of these symptoms, especially with risk factors present, should be taken seriously. Doctors are trained to consider heart attack even when symptoms do not fit the classic textbook description.

Call 999 immediately, describe the symptoms clearly, and, if advised and not allergic, chew an aspirin while waiting for the ambulance, following any specific guidance the ambulance service gives you on the call. Try to stay calm and rest while waiting for help to arrive. Do not attempt to drive yourself to hospital, since symptoms could worsen suddenly during the journey.

Treatment focuses on rapidly restoring blood flow to the affected part of the heart, typically through an emergency procedure called angioplasty (opening the blocked artery with a balloon and stent) or, less commonly now, clot-dissolving medication. Ongoing medication, such as aspirin, statins, and blood pressure treatment, along with cardiac rehabilitation, supports recovery and reduces future risk. The specific treatment approach depends on the type and severity of heart attack and how quickly medical care is accessed.

Angina causes chest discomfort typically triggered by exertion and relieved by rest or medication such as GTN spray, usually lasting only a few minutes. A heart attack causes more severe, persistent chest discomfort that does not fully resolve with rest and is often accompanied by additional symptoms such as sweating, nausea, or breathlessness. Because it can be hard to tell the difference reliably yourself, any new, severe, or unusual chest discomfort not settling quickly with rest should be treated as a potential emergency.

Call 999 immediately for chest pain or pressure lasting more than a few minutes, especially with breathlessness, sweating, nausea, or spreading pain to the arm, jaw, or back. Do not wait to see if symptoms improve or drive yourself to hospital. This is always a medical emergency requiring immediate ambulance assessment rather than a routine or private outpatient appointment.