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.
The average adult bladder capacity is about 300-500 cc. The average bladder begins to feel full at about 100-200 cc. After voiding fully, the average bladder should contain less than 50 cc of urine. Some individuals with chronic urinary retention will have over 1,500 cc of urine in their bladders.