Doctors warn that heart disease has a wide range of symptoms.
But many of them may be hidden away from the chest in unusual places.
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A heart attack is a serious emergency that requires immediate medical attention, Express reported.
If many people know the main symptoms, often only the doctor knows the hidden symptoms.
For example, experts say sudden leg swelling could be a risk for a fatal heart attack.
A swollen foot or entire leg can be a sign that the heart isn’t working properly, cardiologists say.
If the heart can’t pump blood efficiently throughout the body, it can’t get rid of excess fluid.
Unusual signs of early dementia had previously been found in the eyes.
For example, patients may have trouble distinguishing between details, doctors say.