It depends how severe the heart attack was. If it was very severe the person might die, but some heart attacks are “silent”, meaning you don’t get symptoms like pain, so you don’t know you are having one. This is more common in women. If in doubt, always go to see a doctor.
If a heart attack is not treated then the heart muscle itself can become permanently damaged. This is because it is starved of oxygen. This means that the muscle will then be weak and will struggle to pump blood around the body. The person will get tired and out of breath really easily. this is what we call heart failure. If a heart attack is treated quickly we can stop this damage from occurring.
Great answers here, although some heart attacks can be silent and you don’t know youre having one, some are not and one of the symptoms of a heart attack is pain with tightness of the chest, or pain in the jaw or arm – so they would most probably be forced to call for help and want to see a doctor.
Having a heart attack means part of the heart is not getting the oxygen it needs to work properly, as Rebecca has said, it would cause damage to the heart which would lead to further problems that would require medical attention.
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