A heart attack occurs when a blockage prevents blood from flowing to your heart, typically seen as a sudden emergency. However, studies show that over 50% of heart attack cases have warning signs up to a month before the event. Recognizing these early symptoms is essential for getting timely medical attention.
According to Harvard Medical School, a survey of more than 500 female heart attack survivors found that 95% noticed warning signs “about a month prior” to the attack. These red flags may appear in the days, weeks, or even months leading up to the event, varying from person to person.
Watch for Fatigue
Unusual fatigue is one of the top early warning signs, affecting 71% of heart attack survivors surveyed. It includes extreme tiredness, low motivation, and a constant feeling of exhaustion. Simple everyday tasks may start to feel overwhelming because your heart struggles to pump blood through a blocked artery, leaving you drained.
Along with fatigue, other early signs include chest tightness or breathlessness during physical activity. Stress can also contribute to breathlessness.
More Common in Women
Research indicates that women are more likely than men to experience these early warning signs. Unfortunately, many women delay seeking medical help, thinking the symptoms will resolve on their own.
Symptoms of a Heart Attack
In addition to early warning signs, it’s crucial to recognize the symptoms of an actual heart attack. These include:
- Chest pressure or pain
- Pain radiating to the arms, jaw, neck, back, or abdomen
- Dizziness or lightheadedness
- Sweating
- Shortness of breath
- Nausea or vomiting
Some people may also experience severe anxiety, along with coughing or wheezing. Understanding these symptoms can help you act quickly.
What Causes Heart Attacks?
Coronary artery disease is the primary cause of heart attacks. This occurs when cholesterol-laden plaques block one or more coronary arteries, restricting blood flow to the heart. If a plaque ruptures, it can cause a blood clot to form, triggering a heart attack.
Heart attacks are often categorized based on changes seen in an electrocardiogram (ECG or EKG):
STEMI (ST Elevation Myocardial Infarction): A complete blockage of a medium or large coronary artery, requiring urgent treatment.
NSTEMI (Non-ST Elevation Myocardial Infarction): A partial blockage, although some NSTEMI patients may have a full blockage.
Not all heart attacks are caused by blocked arteries. Other causes include:
Coronary artery spasm: A severe constriction of a non-blocked artery, often caused by cholesterol plaques or early vessel hardening due to smoking or other factors.
Infections: Certain viral infections, including COVID-19, can damage heart muscle.
Spontaneous coronary artery dissection (SCAD): A rare and life-threatening condition where a tear forms in a coronary artery.
Heart Attack Risk Factors
Several factors can increase the risk of a heart attack, including:
- Age: Men over 45 and women over 55 are at higher risk.
- Tobacco use: Smoking and exposure to secondhand smoke raise your risk.
- High blood pressure: Especially when combined with obesity, high cholesterol, or diabetes.
- High cholesterol or triglycerides: Elevated LDL (bad cholesterol) and triglycerides increase the risk, while low HDL (good cholesterol) is also a concern.
- Obesity: Increases the risk, especially when coupled with other risk factors like high blood pressure or diabetes.
- Diabetes: High blood sugar levels increase the likelihood of a heart attack.
- Metabolic syndrome: A combination of central obesity, high blood pressure, low good cholesterol, high triglycerides, and high blood sugar significantly raises your risk.
- Family history: Having a close relative who had an early heart attack increases your risk.
- Lack of exercise: A sedentary lifestyle is a major risk factor.
- Unhealthy diet: Diets high in sugar, animal fats, processed foods, and salt can raise your heart attack risk.
- Stress: Emotional stress, particularly extreme anger, can contribute to heart attacks.
- Illegal drug use: Drugs like cocaine and amphetamines can trigger heart attacks.
- History of preeclampsia: Increases the risk of heart disease later in life.
- Autoimmune conditions: Diseases like rheumatoid arthritis and lupus can increase the risk.
Being aware of these early signs and risk factors can help you take proactive steps to protect your heart and seek timely medical help when needed.
