I have a buddy who just started a Test only cycle. I told him that he had to quit smoking before he went on it due to estrogen problems. He has been off the smokes for a couple weeks now. He is having withdrawls and keeps asking me if he can use a nicotine patch to cure his cravings. I have heard of increased estrogen levels if you smoke but he thinks that maybe its the other millions of chemicals in cigs that cause that not the nicotine. Any advise I can tell him.