It is often recommended that women who suffer from stress incontinence (leaking that occurs as a result of coughing, laughing, sneezing, or otherwise exerting stress on the bladder) undertake pelvic-floor muscle exercises. Now there is evidence that these simple exercises may be just as useful in treating urge incontinence. This occurs when bladder capacity decreases or the normal bladder spasms used to release urine begin to occur spontaneously. The effects of pelvic-floor exercises were compared with those of incontinence drug oxybutynin in a study of 197 women between the ages of 55 and 92. It was found that 100% of the exercise group reported their urge continence was either better or much better, compared with 82% of those on the medication.