 [ Symptoms ] i was smelling a 100 polyester backpack to see if it needed to be washed i got a headache can this cause brain damage  i am known to be a hypochondriac can catching a few whiffs of this 100 polyester cause any short term long term brain damage or am i worrying about nothing [ Disease ] most helpful answer your prostate is safe with masturbation whether you choose to ejaculate or deny yourself this normal pleasurable experience the change in your psa has nothing to do with your masturbation habits unless you are having any religious objectionsguilt about pleasuring yourself i see no logical reason to practice denial as you call it