Generally, someone could survive weeks without food and a few days without water, but research is lacking due to the ethics ...

Most people can survive for about three days without water, though the exact timeframe varies based on age, physical activity, overall health, and environmental conditions. Jump to Key Takeaways. How ...

If you go without water for too long, you can experience dehydration, which can cause lightheadedness, fatigue, low blood pressure, heart palpitations, and death. Most people can only survive about ...