Dehydration occurs when the body loses more than 1.5% of its water content. Common causes of dehydration include sweating, breathing, exercise, aging, altitude, stress, diarrhea, and alcohol consumption. Symptoms of mild dehydration include thirst, reduced appetite, flushing, dark urine, dry mouth, fatigue, headaches, chills, and dizziness. It is important to drink 6-8 cups of water per day to avoid dehydration and its negative health effects.

1. dehydration

2. About 60% of our body is made of
water. Dehydration starts when you
lose 1.5% of it.

3. Your body loses water when you
breathe and when you sweat.

4. If you get dehydrated, you might faint.

5. Dehydration is bad for your skin.

6. It is important to drink 6-8 cups of
water every day.

7. Exercise can cause dehydration
When we sweat, we
lose water.

8. Ageing
When we get old we
don’t feel thirst as much.
So we may forget to drink
as much.

9. High altitudes- Mountains

10. Women should drink more water
during their period.

11. Some medicines will make you
dehydrated

12. Stress can make you dehydrated
• Stress affects the glands that control fluid in
your body.

13. Diarrhea โรคท้องร่วง

14. Drinking cool water can help you lose
weight!
• It makes you feel full, so you don’t eat as
much.
• Cold water burns calories.

15. Alcohol will make you dehydrated.
That is what gives you a hangover.

16. Symptoms of mild dehydration
(2% loss of fluids)
• Thirst (with caveats as above)
• Reduced Appetite (often despite a lengthy period
without food)
• Skin Flushing (especially face and neck)
• Dark Colored Urine (may be confused by
supplement use or some foods)
• Dry Mouth (and difficulty producing saliva)
• Fatigue
• Mild headache
• Chills
• Dizziness

17. Urine color chart

18. Kidney stones
Chronic dehydration
can cause kidney
stones.
These can be VERY
painful when they
come out.

19. Chronic dehydration
• 1. Fatigue, Energy Loss.
• 2. Constipation
• 3. Digestive Disorders: Not enough digestive juices.
• 4. High and Low Blood Pressure: The body’s blood volume is not enough to
completely fill the entire set of arteries, veins, and capillaries.
• 5. Gastritis, Stomach Ulcers: To protect its mucous membranes from being
destroyed by the acidic digestive fluid it produces, the stomach secretes a layer of
mucus.
• 6. Respiratory Troubles
• 7. Acid-Alkaline Imbalance: Dehydration activates an enzymatic slowdown
producing acidification.
• 8. Excess Weight and Obesity: We may overeat because we crave foods rich in
water. Thirst is often confused with hunger.
• 9. Eczema: Your body needs enough moisture to sweat 20 to 24 ounces of water,
the amount necessary to dilute toxins so they do not irritate the skin.
• 10. Cholesterol
• 11. Urinary Infections
• 12. Premature Aging

20. Questions
• Have you ever been dehydrated before?
• What is one thing that can happen if you are
dehydrated?
• What are two causes of dehydration?
• What color should your urine be?
• How much water should you drink everyday?