According to studies conducted by Japanese scientists at the Vitality Center for Biomedical Science in the city of Yamaguchi of Japan, about 55% of men suffer from the symptoms of ED in various types, whether elderly or young, the study classified patients with ED into two categories: The elderly suffer from a weakness in the production of testosterone and damage to the nerves and cells as a result of age, in addition to diseases such as diabetes, high blood pressure and cholesterol, which inhibit and reduce sexual performance, therefore unable to function sexually. Youth studies showed that 60% of young people suffer from dysfunction in terms of sexual performance ” here, we’re not just referring to ED, but also disorders in the sexual function, such as premature ejaculation, the inability to reach orgasm, or impotency ” these disturbing symptoms are evident through several indicators
