送交者: antilier 于 2006-7-06, 13:55:28:
回答: Why Dr. Yang is taking gensing soup then? 由 Latino2 于 2006-7-06, 12:38:31:
Experts believe that psychological factors such as stress, anxiety, guilt, depression, low self-esteem, and fear of sexual failure cause 10 to 20 percent of impotence cases. Experts also believe that the efficacy of Genseng in Dr. Yang is the effect of placebo (sort of psychological)