The human body is made up largely of water, so you need the right balance of fluids in your system for good health. Along with the fluids, the body also needs electrolytes, which are salts normally found in blood, other fluids, and cells.
You may lose excessive body fluids in a variety of ways:
If the body loses a substantial amount of fluids and salts and they are not quickly restored, the body starts to "dry up" or get dehydrated.
1 to 2
Pale, odorless and plentiful urine is often an indication that you are well hydrated.
Advice: Keep drinking at the same rate.
3 to 4
Slightly darker yellow urine can indicate that you need to drink more water.
Advice: Drink a glass of water now.
5 to 6
Medium-dark yellow urine is often an indication that you are dehydrated.
Advice: Drink 2-3 glasses of water now.
7 to 8
Darker, strong-smelling urine in small amounts can be a sign of dehydration.
Advice: Drink a large bottle of water immediately.