6. Spontaneous Dizziness, Lightheadedness, or Near-Syncope
Feeling lightheaded when standing or sitting quietly indicates a momentary drop in cerebral perfusion. When the heart pumps erratically or valves restrict outflow, your brain experiences a brief oxygen deficit.
Frequent dizzy spells or unprovoked fainting spells—clinically known as syncope—warrant comprehensive cardiac assessment. These episodes may stem from undiagnosed arrhythmias, structural heart defects, or fluctuating blood pressure.
Leave a Reply