The human body loses an average of 2.3 liters of water everyday

The human body loses an average of 2.3 liters of water everyday

Here are 5 reasons why:

1.) Evaporation from the lungs - 350ml
This is because the air that enters it becomes moisturized before it is expelled. Can increase especially in cold weather.

2.) Diffusion through the skin - 350ml
Independent of sweating. Both reasons 1 and 2 are what we call insensible water loss because we are not consciously aware of it.

3.) Sweating - 100ml
May increase depending on the level of physical activity and the temperature of the environment.

4.) Feces - 100ml
Can increase in cases of severe diarrhea.

5.) Urine - 1.4 liters
The amount is highly variable depending on the person's hydration status.  It can be as low as 500ml/day in a dehydrated individual or as high as 20 liters in a person drinking large amounts of water