Make a clean break. Do not allow yourself to smoke "now and then." An addiction to nicotine can be reactivated anytime, even years after quitting. Hormonal imbalances: Imbalances of hormones, such as thyroid hormones, prolactin, and testosterone, can affect a man's response to sexual stimulation. These imbalances can be the result of a tumor of the pituitary gland, kidney disease, liver disease, or hormonal treatment of prostate cancer. If you need viagra now viagra for sale online without prescription Licensed Pharmacy Viagra canadian pharmacy viagra One variation of the vacuum device involves a semirigid rubber sheath that is placed on the penis and remains there after erection is attained and during intercourse. Depression affects the way one feels about oneself and the way one thinks about life. People who are depressed cannot simply "pull themselves together" and get better. Without treatment, symptoms of depression can last indefinitely. Appropriate treatment, however, can help most people who suffer from depression get back on track.