You've probably heard that you're supposed to drink eight 8-ounce glasses of water a day (64 ounces total). This is called the 8x8 rule and is very easy to remember. However, some people believe this is outdated advice and that you should actually be drinking more water than that. So, how much water should you drink every day?
The 8x8 rule is a good general guideline, but it's not based on science. Your actual water needs depend on many factors, including your age, gender, weight, activity level, and climate.
For example, if you exercise frequently or are exposed to hot temperatures, you need to drink more water to replace the fluid you lose through sweating. On the other hand, if you live in a cold climate or don't get much exercise, you don't need as much.
In general, most healthy people can stay hydrated by drinking water and other fluids whenever they feel thirsty. For some people, this means drinking 8-10 glasses of water per day. But others may only need 5-6 glasses per day.
If you're not sure how much water you should be drinking, a good rule of thumb is to drink half of your body weight in ounces. So if you weigh 150 pounds (68 kg), you should be drinking about 75 ounces (2 liters) of fluids per day.
Conclusion:
There's no one-size-fits-all answer to how much water you should drink every day. However, the 8x8 rule is a good general guideline. Your actual needs depend on factors like your activity level and climate. Most healthy people can stay hydrated by drinking water and other fluids whenever they feel thirsty.