When men have erectile problems, men usually try to keep silent about it. Insteadd of consulting a doctor, they prefer to purchase various drugs that allow them to get an erection and last longer in bed. Everyone knows about the popular ED drugs – Viagra, Cialis, Levitra… But it is nt always possible to buy them without prescription. Perhaps, you’ve heard an opinion that Vitamin D can cure erectile dysfucntion. It is a myth a reality? Let’s find it out.