Aside from being hilarious, Laura Allen makes complete sense. This is why I like to tell recipients after a massage to stay hydrated, instead of telling them to drink extra water to flush out the toxins (that were supposedly loosened up by the massage and are floating around in your body just needing to be peed out by that extra water).
The body doesn’t work like that, as Laura points out.
However, your body thrives on getting enough water! Everything works better, including sweating, peeing, and pooping, which remove metabolic waste.
How much water? Divide your body weight in half and drink that many ounces. Weigh 150? Drink ~75 ounces per day. Add more on days when you sweat a lot.