Spanish: habitational name from places in Burgos or Lugo (Galicia) named Rojas, from a derivative of rojo âredâ. Source: Dictionary of American Family Names Â©2013, Oxford University Press.
You should drink two cups of water about two hours before you exercise. Dear Lifehacker, I've heard you need eight glasses of water every day, but I've also heard that it might be more or less. Some say too much water is bad, and many more say too little is bad.
Water Intake Calculator. A Few Simple Calculations to Assure You are Getting Enough Water/Salt Each Day. To better determine how much water you need each day, divide your body weight in half. The answer is the approximate number of water ounces you should drink daily. You should drink half of your body weight in ounces. Individuals who are physically active or live in hot climates may need to drink more. 1 cup = 237 ml.