How long can a person live without food and water or air?

How Long Does Starvation Take?

The technical name for starvation is inanition. It is extreme malnutrition and calorie deficiency. How long it takes for a person to starve to death depends on a factors that include general health, age, and starting body fat reserves. One medical study estimated the average adults could last from 8 to 12 week without food. There are documented cases of a few individuals lasting 25 weeks without food.