A person can typically live without food for about 1 to 2 months, with some cases of survival reported up to 70 to 80 days or even longer under medical supervision. However, survival time varies widely depending on factors such as initial body fat, overall health, hydration, and activity level. Water intake is crucial; a person can live only around 3 to 5 days without water, but without food, survival can extend as long as they continue to drink water. During starvation, the body first uses glycogen stores, then fat reserves, and finally muscle tissue for energy. Severe complications like muscle breakdown and organ failure become more likely as starvation progresses. Historical cases, such as hunger strikes, illustrate survival up to 40-60 days without food, and an extreme medically supervised case lasted 382 days without solid food but with liquids and vitamins.