I stopped using nicotine. I smoked in the marine corps and dipped skoal fine cut for years. I started this habit back when I was 16. Im in my middle 40s now and thank god I still have nice white teeth. I had receding gums. But I fixed the years and years of damage on my gums and in my mouth. I hid my addiction for years. I told myself Im not a nasty dipper. Until a ran into a problem at the age of 35. I got up on my girl, and was getting into it, and you could hear crickets for the longest time. she said whats wrong? Im like fuck I dont know. My shit wont get going. Went and saw a doctor and did my blood work and I told him my habits and alcohol use on paper. After blood work, he basically said, look you have signs of low t. you wana fuck? quit the nicotine. It causes ED. I told him I cant quit. He said, fine be a limp dick the rest of you life. I stopped 10 years ago. Today, I still wake up with strong full on boners from time to time. Just saying, and I wanted to share..