A 2004 study also found medical residents with less than four hours of sleep a night made more than twice as many errors as residents who slept for more than seven hours a night, an especially alarming trend given that less than 11% of surveyed residents were sleeping more than seven hours a night.
Best Answer: A normal adult bladder can hold anywhere from 16 to 24 ounces (about 500 to 750 mL) before the urge to urinate becomes overwhelming. Everyone's bladder is different though, so some can hold more than that amount, some less.
Quick Answer. A normal human bladder can hold 1.5 to 2 cups of urine, which is the equivalent of 12 to 16 ounces. The kidneys produce 1 to 2 quarts of urine daily by filtering 120 to 150 quarts of blood.