The common belief is that a person can survive several weeks without food, as long as they have access to water. Recognizing the variability based on individual circumstances is paramount., The average person can only survive for three to five days without water. However, there have been cases of people surviving for longer periods without water, such as when lost in the desert or during times of famine., You can generally survive without drinking water for up to 3 days. But there are claims that they have survived 8 to 10 days, even a drop of any fluid. The amount of time it takes to survive depends on external factors, such as humidity, temperature, and general health., Several factors dictate how long a person can survive without water: 1. Body Composition: Individuals with higher muscle mass may survive longer due to their increased reserves of stored nutrients. 2. Health Conditions: Chronic illnesses such as diabetes or kidney disease can exacerbate fluid loss., There are claims of 3 weeks being easy, but a medical study would be unethical because of the risks posed to the subjects. You can remember this easily as the rule of threes: You can survive: 3 hours without shelter (death by hypothermia, heatstroke). Going beyond those guidelines will generally do you permanent damage., Find out how long you can survive with just water and the risks associated with prolonged water fasting, including dehydration, nutrient deficiencies, and organ damage..