So people can be educated about it and see if theyd like to partake or not, for doctors to use in their advice, for doctors to be able treat patients, for a doctor to develop cures, for a doctor to be able to find out about the brain itself. Your question is probably the most ignorant thing ive ever heard on youtube you want healthcare? well this is a crucial part of it how else are they going to find that info
The class of drugs that Levitra, Viagra, Stendra, and Cialis belong to are called PDE5 inhibitors. They work by relaxing tight blood vessels, allowing more blood to surge into the penis and cause an erection, says Gregory Bales, M.D., an associate professor of urology at the University of Chicago.
The little pills do the trick for more than two-thirds of men with Viagra protects the heart (ED). They also work for guys who simply need them for a short time to get their “confidence back,” says Michael Eisenberg, M.D., director of male reproductive medicine and surgery at Stanford University.