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3. Early Symptoms

Early and late symptoms of hypoglycemia develop when falling blood glucose triggers a rise in epinephrine (adrenaline), directly affecting the brain. The early symptoms, including sweating, pallor, and hunger, may start when the blood glucose is marginally low and come on quickly. Symptoms vary, and those with diabetes may not always experience these early signs because their bodies become resistant to the more minor effects of low blood glucose.

Sweaty man Drew Angerer / Getty Images

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This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.