How Much Water To Drink Daily- Dehydration Signs, Symptoms & Prevention


Water dehydration is a very serious concern. Water dehydration occurs when the body does not take in enough water to replace the amount that it loses on a daily basis (through perspiration and excretion). Once this happens, you can begin to experience some serious (and potentially) life threatening dehydration symptoms. Prevent dehydration by knowing dehydration signs to look for.

What are the dehydration signs?

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Mild to moderate cases of dehydration are likely to cause:

  • Sticky mouth, dry mouth
  • Thirst
  • Dry skin
  • Headache
  • Dizziness or lightheadedness
  • Constipation
  • Tiredness


For extreme (or severe) dehydration, you can experience:

  • Lack of sweating
  • Extreme thirst
  • Rapid breathing, heartbeat
  • Low blood pressure
  • Very dry skin, mouth and mucus membranes
  • Little to no urination
  • Fever
  • No tears when crying
  • Extreme sleepiness and fussiness in infants, children; irritability and confusion in adults
  • Delirium or unconsciousness (in more serious cases)                 


How much water to drink a day?

Drink. More. Water. The recommended amount of water to drink is eight 8 oz. glasses a day (the 8 by 8 rule). However, this amount can vary depending on various circumstances such as weight, age, how active you are and any medication you may be on. It is best to know about your own body’s needs for fluids and to remember that you need to replace the amount of water that you lose during the day (through perspiration, urine, breathing, bowel movements). Drinking too much water can lead to water intoxication. <—Tweet this!

How can I drink more water?


Carrying water with you may be the most convenient option as that gives you the ability of drinking water wherever you are. Vapur offers a line of reusable water bottles (read our Vapur Water Bottles Review) that are perfect for on-the-go use and can be stored practically anywhere. Filtered water pitchers (such as the Brita Bella Water Pitcher) are also a good choice as it gives you clean water whenever you are at home. In addition, set up daily reminders (leave a note on the refrigerator) and opt for water instead of soft drinks throughout the day.


Dehydration prevention is vital especially during periods of intense heat. Be more conscious to drink more water no matter what time of year it is. As a general rule, don’t wait to drink water when you get thirsty. Do it beforehand. Do you have any tips on how to drink more water during the day?

Through the Drinking Glass: Are You Drinking Too Much Water a Day?

At some point in our lives we’ve heard that we should drink around six to eight glasses of water a day. It’s a recommendation that’s rarely challenged and championed by many health advocates. But where exactly do the numbers come from and why? Dr. Margaret McCartney, a general practitioner from Scotland, is challenging the 8-glasses-a-day rule and recently published her thoughts in an article entitled “Waterlogged?” in the British Medical Journal.

Dr. McCartney describes the notion that “we don’t drink enough water” as “thoroughly debunked nonsense,” and that having too much water could be unhealthy. She notes that the recommendation to drink six to eight glasses of water a day is supported by many health officials and organizations, including the NHS (National Health Service). The NHS Choices website even states on its website that we should “try to drink about six to eight glasses of water (or other fluids) a day to prevent dehydration. When the weather is warm or when we get active, we may need more.”

McCartney’s claim is bold, no doubt, but she cites two major sources as evidence. First, Heinz Valtin wrote in the American Journal of Physiology in 2002 that that there is “no scientific evidence that we need to drink that much [water]” and that the “recommendation could be harmful.” Also, a 2008 editiorial in the Journal of the American Society of Nephrology stated that “there is no clear evidence of benefit from drinking increased amounts of water…there is simply a lack of evidence in general.”

Others are rushing to support Dr. McCartney’s assertions and are relieved that she’s contributing to this ongoing conversation. The Guardian notes that “we humans are pretty good at regulating our own water intake. When we need to replace fluid there’s this highly accurate mechanism called thirst that prompts us to have a drink.”

A unique idea…drink only when you’re thirsty.