cant hurt seriously though, as far as medical health reasons are concerned, it is a fact that when you have sex your blood vessels open up and your bodys blood flow becomes less constricted and its good for your arteries. i read also that when women try and use 'i have a headache' as an excuse not to have sex, then they are in trouble, because the increased circulation of blood flow throughout the body has been proven to cure headaches. (why would you not want to have sex though, lol)