Heart attack and their Impact

A heart attack, also known as a myocardial infarction (MI), occurs when the blood supply to a part of the heart muscle is severely reduced or completely blocked. This usually happens due to a blood clot that forms in one of the coronary arteries, which supply oxygen-rich blood to the heart muscle.

Blockage Formation: The most common cause of a heart attack is atherosclerosis, a condition in which fatty deposits called plaques build up on the inner walls of the coronary arteries. These plaques can rupture, leading to the formation of blood clots.

Blood Flow Obstruction: When a blood clot becomes large enough, it can block the blood flow through a coronary artery. This reduces or cuts off the supply of oxygen and nutrients to the heart muscle tissue downstream from the blockage.

Heart Muscle Damage: Without sufficient oxygen and nutrients, the heart muscle cells begin to die. This damage to the heart muscle tissue is what defines a heart attack. The severity of the damage depends on factors such as the size of the blocked artery and how quickly medical treatment is received.

Symptoms of a heart attack can vary, but they often include:

Chest Pain: This is the most common symptom. It's often described as a feeling of pressure, tightness, heaviness, or a squeezing sensation in the chest. The pain can radiate to the arms, neck, jaw, back, or stomach.

Shortness of Breath: Difficulty breathing or feeling like you can't catch your breath.

Sweating:  Cold sweat, often accompanied by nausea.

Lightheadedness or Dizziness: Feeling faint or dizzy.

Fatigue: Unusual tiredness or lack of energy.

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