As much as 75 percent of us are regularly dehydrated. And it turns out that even being dehydrated by as little as 2 percent can significantly limit cognitive ability. For this reason, I use a HidrateSpark smart water bottle to track my hydration automatically. Its mobile app gamifies the experience, showing a dial with markers of current intake vs. recommended pace. And like Google maps, you better believe I’m trying to beat that ETA!
Source: Ben Meer