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.
A normal adult bladder can comfortably hold anywhere from 15 to 20 ounces, or about 450 to 600 mL of urine. Anything below 12 ounces (360 mL) for an adult would definitely be considered small. If you're not an adult, the normal capacity is about 1 ounce per year of age (14 years = 14 ounces, and so on).