How Much Water Do We Actually Need Each Day?

We know we need water to survive but in terms of just how much, there are a lot of opinions regarding the perfect amount we should be consuming each day. Experts say the answer is not straight forward, and a recent article in Popular Science weighs in with yet one more opinion to, as they put it, a surprisingly complex issue.

While we all have gotten used to reading that we should be jugging down eight cups of water each day for optimal health, recently researchers say that is not really the answer. Rather, it appears commonsense is the truest answer as experts say there are a number of factors to take into consideration regarding how much water our bodies need each day. Variables include how much you exercise, how hot or cold is it outside, what food you consume that day, and what type of health issues you have or medications you take. This is why 8 cups of water may or may not be the amount your body needs. 

The best answer appears to be to listen to your body’s thirst sensation for when you need more hydration. The Harvard Medical School says on average most people need about four to six cups of plain water each day along with their food intake. 

However, it is important to note that for older adults the thirst mechanism is blunted and may not be as effective at letting them know when they are dehydrated. This can be due to reduced kidney function that increases fluid loss. Other factors are medications such as diuretics or reduced mobility making it harder for  seniors to access fluids. People with dementia may have a difficult time recognizing thirst or no longer have the ability to express their need for hydration. If you are at risk for dehydration, talk to your healthcare provider about strategies to ensure you get enough fluids throughout the day. 

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Source: popsci.com/science/how-much-water-should-you-drink-in-a-day/