Studies have shown that the body contains about 60,000 miles of blood vessels which, with your heart and other muscles, make up the circulatory system, carrying blood to every part of the body. If you have poor circulation issues, it means that the cells and organs in the body cannot get all the oxygen and nutrients needed to function properly.
Good sexual function demands a good blood flow to the penis, and genitals in general. A poor blood supply to those areas can cause a low sperm count, as well as erectile dysfunction.