How much water do I really need?
Our bodies are about sixty-five percent water (if you weigh 200 pounds, everything that isn’t water weighs just 70 pounds). So why would you need more
of it? Because water helps us breathe, it regulates our metabolism and
our temperature, and it helps us digest our foods. And since we lose
water regularly—just like the planet, which is 70% water—we have to
replace it.
A few myths have helped
propel water to its status of healing elixir over the past few years.
Debates continue over how much water we need daily. And while the 8x8
rule (eight 8-ounce glasses) is certainly easy to remember, the formula
isn’t that simple.
You’ll need more water
if you exercise—and extra one and a half to two and a half cups for a
30-minute workout. You’ll need even more for high-intensity and long
workouts. Hot weather makes you sweat more. Illness makes your need for
additional fluids greater.
Chances are good those
eight glasses of water will do the trick, especially when you factor in
the other water-based beverages you consume.
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