Ollie [ol-lie] as a boys' name (also used less generally as girls' name Ollie) is of Latin origin, and Ollie means olive tree. Ollie is a version of Oliver (Latin). Associated with: tree.
The Takeaway. On average men need 3.7 liters of fluids per day, and women need 2.7 liters. All fluids count, including milk, juice, coffee, tea, and even water-rich foods. Thirst and urine color might be better guidelines for staying hydrated. Weather, activity level, illness, and age can all impact water needs.
The average person loses about 10 cups of water per day through sweat and urination. At the same time, you gain fluid from drinking liquids and eating food. So how much you need to drink is a tricky question. You may have heard the âdrink 8 glass of water a dayâ rule.