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Men with untreated ED had relatively low baseline scores for all aspects of sexual function measured (again using a 5-point scale) in the IIEF. Viagra improved these aspects of sexual function: frequency, firmness and maintenance of erections; frequency of orgasm; frequency and level of desire; frequency, satisfaction and enjoyment of intercourse; and overall relationship satisfaction. how does viagra work High blood pressure. Make sure your blood pressure is checked at least once a year. If it is high, it can be treated.

18. Khandheria BK "Erection, erectile dysfunction: what has heart got to do with it?" Herz 28 (2003): 275-6

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Another statistic wielded by the campaigns - the claim that 43% of American women have a sexual dysfunction - has also come under fire. The figure is drawn from a contentious 1994 survey that gave its female respondents the option of answering yes or no to whether they had any sort of sexual problem, but the survey did not collect any data on what the nature of the problem was - even the senior author of that study has reportedly claimed the statistic is misused.