Water is one of the 6 essential nutrients, next to carbohydrates, protein, fats, vitamins and minerals. We need water for the human body.
We can live without food for 43 to 73 days, depending on the climate. But we can only survive 3 to 6 days without water.
When we age the system that indicates that our body needs water or food can be disturbed. We don’t always feel hunger or thirst signs. That’s why a lot of elderly people end up dehydrated or malnourished.