What causes intermittent dizziness?

Episodic dizziness may be caused by various factors, mainly including: Physiological factors: 1. Overexertion: Prolonged work or study leading to brain fatigue may result in dizziness. 2. Sleep deprivation: Short sleep duration or poor sleep quality may cause dizziness. 3. Hunger or stress: In a state of hunger, the brain tissue lacks sufficient energy supply; during stress, sympathetic nervous system activation may lead to insufficient cerebral blood flow. Disease-related factors: 1. Cervical spondylosis: Cervical spine degeneration, bone spurs, or structural deformities may compress local nerve tissues, causing dizziness. 2. Anemia: Insufficient nutrient intake or picky eating may lead to anemia, resulting in dizziness. 3. Common cold: Dizziness may occur due to catching a cold from exposure to cold or reduced immunity.