Why Men With This Blood Type Have Better Erections
It’s possible that people with type A and type B blood have greater levels of adhesion molecules in their blood, which can lead to the development of plaque buildup in the arteries. This can affect blood flow, both to the heart and to the penis—leading to an increased risk of heart disease and erectile dysfunction.
It’s also possible that other genetic components of the A and B blood types may lead to blood vessel damage, which can disrupt the biological processes necessary in getting an erection. (Want to keep your erection hard for life? Try the Men’s Health Guide to Erectile Dysfunction.)
Now, this was a retrospective study, meaning that the researchers can’t determine cause and effect. More research must be done first to solidify the link.