1.4 KiB
1.4 KiB
- The body is composed of 50 to 75% water
- Lean muscle contains more water (73$
- Fat tissue contains less water (20%)
- For a healthy person, water intake equals water outtake
- For every pound of water weight lost, you should intake two cups of fluid.
Functions
- Is a solvent
- Is a major component of blood, saliva, sweat, tears, mucus, and joint fluid
- Removes waste
- Helps transport substances
- Lubricates tissues
- Regulates body temperature
- Helps digest foods
- Participates in many chemical reactions
- Helps maintain proper blood pH
- Doesn't play a major role in immune system function
Compartments
- The body has two major fluid compartments:
- Intracellular water is inside the cells - Managed by potassium and phosphorus
- Extracellular water surrounds cells or is in the blood - managed by sodium and chloride
- Water follows sodium
Dehydration
- Common signs of dehydration:
- Rapid weight loss
- Dry or sticky mouth
- Low or no urine output
- Dark urine
- No tears
- Sunken eyes
- If not corrected, dehydration can lead to death
Water intoxication
Water intoxication is a condition that occurs when too much water is consumed in a short period of time or kidneys can't filter water from blood
- Excess water dilutes sodium concentration of blood
- Results in hyponatremia
- Low blood sodium
- Symptoms: confusion, dizziness, headache, can lead to death