| 1 | It's an impotence metaphor. | |
| 2 | This can compound the problem and lead to impotence. | |
| 3 | Absence of libido may or may not correlate with infertility or impotence. | |
| 4 | The majority of causes of male impotence have their origin in hormonal, vascular or neurological factors. | |
| 5 | Previous research has shown that long-term smokers are up to twice as likely to have impotence as non-smokers. |