Heart attacks are more common than people realize, according to the Heart Organization, every 40 seconds in United States someone has an attack. This happens when the blood flow is restricted or completely cut off, unable to reach the heart muscle. This happens when there is a buildup of fat or cholesterol blocking the arteries. Even though it is the number one cause of death in women, they often chalk it up to acid reflux, the flu, or just symptoms of normal aging. However, mistakes like this are not uncommon and sometimes, these misleading symptoms can significantly delay treatment. The National Health Service (NHS) notes that this serious condition can show up in various ways, including chest pain, dizziness, sweating, and breathlessness. Dr. Chris Kelly, Chair of Cardiology at UNC Rex Hospital, highlighted three key indicators that require immediate medical attention at an emergency room. He specifically pointed out that one of these signs is less common and often mistaken for other illnesses. A Primary Warning Dr. Kelly says the most common sign of a heart attack is chest pain. People might describe it as pressure, tightness, fullness, or just an ache in the chest. If you feel any chest discomfort that doesn't get better after a few minutes, especially if it spreads to your shoulders, arms, or jaw, it's a very serious sign. If this happens, you need to get to an emergency room right away. Sudden Shortness of Breath Another important sign Dr. Kelly mentioned is a sudden feeling of being short of breath. He explained that if you're not doing anything active but feel like you've just run a long distance, it could mean your heart is struggling. This can cause fluid to build up in your lungs. If you suddenly feel this way, go straight to an emergency room to get checked out. Unexpected Abdominal Pain and Nausea A less common, but still serious, sign of a heart attack can be sudden belly pain along with nausea. Many things can cause these symptoms. However, Dr. Kelly advises being extra careful if you are over 50, have risks for heart disease, and suddenly feel belly pain and nausea, especially if you also just "don't feel right." This particular symptom is more common in women. If you experience this and it doesn't get better in a few minutes, head to the emergency room immediately. Importance of Prompt Treatment Dr. Kelly stressed that getting medical help as soon as possible is crucial for your heart. As heart doctors often say, "time is muscle." This means the faster you get to the emergency room, the better the chance your heart has to recover and work properly in the long run. He emphasized that it's always "better to be safe than sorry" and to seek help quickly. The NHS also mentions that while chest pain is the most common heart attack symptom (and can sometimes feel like indigestion), other symptoms can happen without chest pain. These include shortness of breath, feeling or being sick, and pain in the back or jaw. If you think someone is having a heart attack, it's vital to call emergency services immediately, as quick action greatly improves their chances.