Lecture Notes: The Effects of Overconsumption of Water

Introduction

• Importance of water in the body
  • Makes up about 60% of body weight
  • Crucial for many body functions: cell hydration, temperature regulation, organ function
• Like anything, too much can be harmful

How Water Moves Through the Body

• Digestive Process:
  • Water journey: Stomach → Small Intestine (absorption into bloodstream)
• Role of Kidneys:
  • Act as filtration system, regulate fluids
  • Produce urine to remove extra water and waste
  • Maintain fluid balance around cells

Limitations of the Kidneys

• Kidneys can process 800-1,000 mL of water per hour
• Drinking more than this can lead to excess water in bloodstream
• Risk of developing Water Intoxication/Hyponatremia

Understanding Water Intoxication (Hyponatremia)

• Process:
  • Excess water dilutes sodium in the blood
  • Body moves water into cells to balance sodium-water solution
  • Cells swell due to excess water
• Impact on Brain Cells:
  • Brain cells trapped in skull (hard structure, no room to expand)
  • Swelling increases pressure in skull
  • Can lead to headache, confusion, drowsiness
  • Severe cases: brain damage, coma, life-threatening consequences

Prevention

• Drink water steadily throughout the day
• Respond to body's thirst signals

Trivia

• Water can be digested in as little as 5 minutes
• Simple liquids (tea, juice) take about 30 minutes to digest

Conclusion

• Importance of listening to your body for fluid intake
• Avoid consuming excessive water at once to prevent potential risks

Note: Always be mindful of your body's signals and regulate your fluid intake accordingly to maintain optimal health.