I noticed something about my blood a few days ago, HOW CIRCULATION to certain parts of my body had returned. callouses on my feet which was very painful at times suddenly went away since I stopped smoking, I just realized this today, I have not had any pain, and it went unnoticed for a while. I don't know exacxtly when the circulation returned to my feet , But it is amazing all this time I thought it was the shoes I was wearing, or my job where I am on my feet the full 8 hours I am there. the callouses are gone!!. Smoking also had a negative side affect on my sex life also. I'll just say The BLOOD is flowing to all the right places. Oh yes I am stating that not smoking has improved my relationship sexually. GOD BLESS US ALL WITH ANOTHER SMOKE FREE DAY.