The general rule of thumb is that you should drink eight 8 ounce glasses of water per day (at least). RELATED: HEALTHY FOOD CHOICES FOR A LONGER LIFE. Interestingly some agencies claim that total fluid intake (water and other fluids) should exceed 3 liters for men and 2.2 liters for women.
Just because pizza sits out for an hour or two doesn't mean you have to throw it away. Pizza can be left in room temperature for up to two hours -- or one hour in hot temperatures above 90 degrees Fahrenheit -- and still be safe to eat, according to the USDA.
How long yogurt can be unrefrigerated depends on the room temperature. According to the U.S Department of Heath & Human Services, yogurt should be discarded after two hours of sitting out at room temperature between 41 Â°F and 90 Â°F. However, if the temperature exceeds 90 Â°F, yogurt can sit outside the refrigerator for no longer than one hour.