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Is a 36-hour fast safe for your health? Doctors reveal metabolic changes, electrolyte dangers and who should avoid it

A 36-hour fast, popular among fitness enthusiasts, carries significant risks, warns neurologist Dr. Sudhir Kumar. While it may boost insulin sensitivity and mental clarity for some, it can lead to dehydration, electrolyte imbalances, and low blood sugar. Certain individuals, including diabetics and those with eating disorders, must avoid it. Dr.