1. Unusual Fatigue
Feeling tired after a long day is normal. But unusual or extreme fatigue without a clear reason can sometimes be an early warning sign of heart trouble.
Many people who later experienced heart attacks reported feeling exhausted for days or weeks beforehand — even after getting enough sleep.
Simple tasks like climbing stairs, walking short distances, or carrying groceries may suddenly feel much harder than usual.
Your heart works constantly to pump blood throughout your body. When it struggles to function properly, your energy levels may drop significantly.
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