When we think of being healthy, we picture someone eating salads and raw vegetables, having strict control over their sleep schedules, and performing rigorous exercises. While all of these things are good for you, they can also feel a little daunting to someone who hasn’t had a healthy lifestyle in a long time. That’s why the 8×8 Rule can be so effective for anyone who wants to improve their health and daily life.

The 8×8 Rule is the process of drinking eight 8-ounce glasses of water per day. It seems simple, but it’s actually proven to be highly beneficial for your mind and body. There are countless benefits to the 8×8 Rule, but perhaps the most interesting is the way that it’s been shown to improve your mental ability and energy levels.

The best part about the 8×8 Rule? It’s pretty much free, and anyone can do it. If you’re looking to improve your life and get healthier, but are not ready to make drastic lifestyle changes, consider applying the 8×8 Rule—you’ll start feeling the difference in mere days.