Impotence more common in men who pop painkillers (Reuters)

Reuters - Aging men tend to take more painkillers and experience more sexual problems, but does that mean one causes the other?

Source: http://us.rd.yahoo.com/dailynews/rss/sexualhealth/*http://news.yahoo.com/s/nm/20110302/hl_nm/us_impotence_painkillers

personal reference letter of recommendation plenty of fish