Heart attacks can occur suddenly and without warning — and knowing the early symptoms and how to respond could be lifesaving. This guide explains what a heart attack is, the major risk factors, and the urgent steps to take if symptoms appear.
What Is a Heart Attack?
A heart attack (myocardial infarction) happens when blood flow to part of the heart is blocked, usually by a blood clot formed after plaque buildup in the arteries (atherosclerosis). Without oxygen-rich blood, the heart muscle begins to die.
Other less common causes include coronary artery spasms or clots that travel from elsewhere in the body.
Key Risk Factors
Risk factors fall into two groups:
Non-modifiable risks
- Age: Men over 45, women over 55
- Gender
- Family history of heart disease or previous heart attacks
Modifiable risks
These can be reduced through lifestyle changes:
- Smoking
- High blood pressure
- High cholesterol
- Diabetes
- Obesity
- Sedentary lifestyle
- Stress
Healthy habits such as regular exercise, quitting smoking, eating a balanced diet, and managing blood pressure and cholesterol can significantly lower your risk.
Early Warning Signs of a Heart Attack
Recognizing symptoms early is crucial. Common signs include:
- Chest pain or pressure
A squeezing, tightness, or heavy feeling in the chest that may last minutes or come and go. - Pain in other upper-body areas
Discomfort may spread to the left arm, both arms, back, neck, jaw, or stomach. It may come with nausea or shortness of breath. - Shortness of breath
Trouble breathing even at rest, more common in women, older adults, and people with diabetes. - Cold sweats, nausea, or dizziness
Feeling clammy, faint, or sick without explanation.
What To Do — Life-Saving Steps
If you or someone nearby shows signs of a heart attack, act immediately:
- Call emergency services
Don’t delay. Fast medical attention greatly improves survival. - Chew aspirin (if not allergic)
One 325 mg aspirin helps slow blood clotting and can reduce heart damage. - Stay calm and rest
Sit or lie down comfortably and avoid any physical effort. - Use an AED if available
In the event of cardiac arrest, an automated external defibrillator can restore normal heart rhythm.
Protecting Your Heart
Understanding heart attack symptoms and responding quickly can save your life or someone else’s. Combine awareness with healthy lifestyle choices and routine medical check-ups to reduce your risk.
Your heart health is one of your most valuable assets — take charge of it.
