Hydration myths, how much water do you really need?

Health Matters With Dr Tendai Zuze

 

WE all grew up being advised to drink 8 glasses of water a day; it’s a simple rule, easy to remember — but is it actually true? In a country like Zimbabwe, where temperatures can swing from mild mornings to scorching afternoons, hydration is important all year round. But the truth about how much water you need is far less fixed than the old “8 glasses” mantra suggests.

 

The idea of a fixed daily water requirement is more myth than science. Your body’s needs depend on many factors — your age, weight, activity level, the weather, and even the type of food you eat. On hot days or when you’re on the move, you may need a lot more than usual. On cooler, quieter days, your body might require less.

 

And here’s something many people don’t realise: not all of your fluids have to come from plain water. Tea, coffee, milk, juice, and even everyday foods like watermelon, cucumber, spinach, and oranges all add to your hydration. It’s worth noting, though, that drinks loaded with sugar or caffeine should be taken in moderation — they’re not the best way to meet your daily needs, even if they do contribute.

 

One common claim is that if you feel thirsty, it’s already too late and you’re dehydrated. In reality, thirst is your body’s own built-in reminder system. It kicks in early enough for most healthy adults to respond before dehydration becomes serious. Of course, this signal can be less reliable in young children, older adults, and certain athletes, so they need to be a bit more mindful.

 

Some people swear by using urine colour as a hydration guide — and it’s not a bad tool. Pale yellow is usually a good sign. If it’s dark, you probably need to drink more. If it’s completely clear all the time, you might actually be overhydrating, which isn’t ideal either.

 

Then there’s the hype around sports drinks. They’re heavily marketed, and while they can be useful for athletes exercising intensely for over an hour, they’re unnecessary for most of us. For a short gym session, a walk, or a few rounds of social football, plain water is the best and usually cheapest choice.

 

In the end, hydration doesn’t have to be complicated. Keep a reusable water bottle with you, drink when you feel thirsty, top up a little extra in hot weather, and add water-rich foods to your meals. Be cautious with alcohol since it can dehydrate you, and remember; no single magic number fits everyone.

 

So instead of counting glasses, listen to your body. It knows what it needs, and with a bit of awareness, you’ll stay healthy, alert, and well-hydrated.

 

For more on optimum hydration, contact [email protected]