Introduction: For many men, grappling with changes in their sexual function can be a distressing experience. Among the most common concerns is the inability to achieve or maintain firm erections, a phenomenon colloquially referred to as "not getting rock hard anymore." While occasional fluctuations in erectile function are normal, persistent difficulties may...
Portuguese 
English
French
Spanish
Deutsch
Turkish
Dutch
Italiano
Russian
Romaian
Portuguese (Brazil)
Greek
urdu