Medical research centre the Mayo Clinic in Minnesota reveals that men should be drinking 13 cups of it a day on average, while women could consume nine.

位于美国明尼苏达州的医学研究中心梅奥诊所表示，男性每天应该喝13杯水，而女性应该喝9杯。

But every person's body is different - and the amount you really need to drink can be worked out using a simple scientific formula.

但每个人的身体都有差异，你需要的饮水量可以通过一个简单的科学公式来计算：

计算饮水量的公式如下：

Step 1: Take your weight (in lbs) and divide it by 2.2.

1. 测量体重(单位：磅)，然后除以2.2(换算：1公斤≈2.2磅)

Step 2: Multiply that number by your age.

2. 所得结果乘以年龄

Step 3: Divide that sum by 28.3.

3. 上述计算结果除以28.3

Step 4: Your total is how many ounces of water you should drink each day.

4. 计算出的结果就是你每天应该饮用的水量(单位：盎司)(1盎司=29.27毫升)

Step 5: Divide that number by eight to see your result in cups.

5. 第4步的结果除以8，得出到底要喝几杯

From feeling less tired to clearing up spots, drinking enough water can cure all sorts of ills.

饮用足够的水能帮你缓解疲劳，还能祛斑，可谓“包治百病”。