How much water you should drink varies. Your age, activity level, health issues, and lifestyle affect what’s right for you.

Most people think 8 glasses of water is enough, but a nutritionist says your age, gender and lifestyle matter. Here's how much you really need daily.

You’ve probably heard that you need to drink eight 8-ounce (240-ml) glasses of water each day. That’s half a gallon of water (about 2 liters).

The "8 glasses a day" rule is thought to have originated from a recommendation made by the U.S. Food and Nutrition Board in 1945. The board suggested that adults need about 2.5 liters of water ...

The widely held belief that humans need to drink eight 8-ounce glasses of water a day — also known as the 8 x 8 rule — is simply not true, a new study says. Instead, water requirements vary by ...

The one-size-fits-all notion that we need to drink eight glasses of water a day is a myth. Water requirements vary based on gender, age, diet, weather, activity level, individual sweat rates and ...

Another part of the "eight glasses of water per day" story is that we are all chronically dehydrated, and yet our bodies are not sensitive enough to correct this by making us thirsty. From a ...

A 1-liter or 32-ounce sports bottle provides four of your daily eight glasses of water. Drink two bottles and you’ll be off to a great start.

This is a simple guideline that's easy to remember and usually easy to achieve. If you weigh 150 pounds, aim to drink 75 ...

New research has found that the recommended eight glasses of water a day may be too much. Scientists from the University of Aberdeen discovered the recommended intake of two litres of water a day ...