If you don’t drink enough water every day, it disappears:
- 8% blood – This leads to narrow blood vessels, blood clots, raised blood pressure, and risk of heart attack and stroke.
- 26% intercellular space – This leads to raised acidity levels, gout, kidney stones, brittle bones, lower immunity.
- 66% cells – This leads to higher cholesterol, reduced metabolism, and accelerated aging.
Signs of dehydration
- Your mouth is dry
- This seems pretty obvious, but the ramifications might be so. Any time you feel that sticky, nasty feeling in your mouth, you’d obviously reach for some liquid. Keep in mind that sugary drinks are only a temporary solution to a larger problem! Drinking water lubricates the mucous membranes in your mouth and throat, which will continue to keep your moth moist with saliva long after that first sip.
2. Your skin is dry
- Our skin is your body’s largest organ, so it needs to stay hydrated. In fact, dry skin is one of the earliest signs of full-on dehydration. A lack of water means a lack of sweat, which leads to a body’s inability to wash away excess dirt and oil accumulated throughout the day. If you want to stave off breakouts, your first recourse should be to drink more water.
3. You’re very thirsty
- We went over dry mouth already, but thirst goes beyond a desert-like tongue. Anyone who’s ever had a hangover can tell you that, upon waking up, your body just can’t get enough water. Alcohol dehydrates the entire body, and drinking water sends “Yes Please!” signals to the brain until your fluid levels get back to baseline. Listen to what your body is telling you; it knows what it’s talking about!
4. Your eyes are dry
- By now it should be clear that drinking water affects more than just your mouth and throat. A lack of water intake leads to dry, bloodshot eyes. Without water in the body, your tear ducts dry up, and this can cause much more harm to your eyes.
5. You have joint pain
- Your cartilage and spinal discs are made up of about 80% water. This is an absolute necessity to keep your bones from grinding against each other with every step you take. By keeping your body hydrated, you ensure that your joints can absorb the shock of sudden movements, such as running, jumping, or falling awkwardly
6. Your muscle mass decreases
- Your muscles, also, are comprised mostly of water. Less water in the body means less muscle mass. Drinking water before, during, and after a workout not only keeps you hydrated and comfortable, it also brings water to the right places in your body, and decreases the chance of developing inflammation and soreness related to exercise and weightlifting.
7. You stay sick longer
- Drinking water allows your body to flush out toxins continuously. Your organs work to filter out certain waste products like a machine. But if you don’t fuel the machine with water, it cannot work properly. What ends up happening in a dehydrated body is organs start to pull water from stored areas like your blood, which leads to a whole new set of problems.
8. You feel fatigued and lethargic
- When a body is dehydrated it “borrow” water from your blood, and a lack of properly hydrated blood leads to a lack of oxygen being brought throughout the body. A lack of oxygen leads to sleepiness and outright fatigue. A lack of stamina means you’ll start to experience that 2pm crash earlier and earlier in your day.
9. You experience hunger pangs
- When you’re dehydrated, your body might start to think it needs some food. This happens throughout the day, and overnight when you wake up craving that midnight snack. However, eating food creates more work for your body, whereas drinking water purifies and your organs and supplies it with the fuel it needs to go through the other processes a body goes through.
10. You have digestive problems
- We spoke before about the mucus in our mouth and throat, and how keeping hydrated allows the membrane to function correctly. This also applies to the entire digestive system. Without proper hydration, the amount and strength of mucus in the stomach lessen, allowing stomach acid to do some significant damage to your insides. This leads to what we commonly refer to as heartburn and indigestion
11. You experience premature aging
- The amount of water your bodies retain naturally decreases as you age. While premature aging is more evident on the outside, the damage it does to our insides will ultimately be felt over time.
Source：https://www.youtube.com/watch?v=WIAWUW1R9_Y