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.
Urine passes from the kidneys into the ureters that lead the urine down to the bladder. Bladder: The bladder is used as a storage space for waste that needs to be excreted from the body. On average, the bladder can hold 400ml to 600ml at a time of the one to two liters of urine that are produced each day.