Smoking absolutely can, as nicotine is a vasoconstrictor and will reduce your blood vessels’ ability to dilate.

Coca-Cola, maybe. In general, being overweight and stressing your cardiovascular system will also be bad for your erections.

I don’t need to tell you that smoking is bad for you in myriad ways, you’ve surely heard it all before. As a former smoker myself, just wanna tell you that you can quit. I did it cold turkey. It was rough for a while, and one of the hardest parts is learning to do your daily tasks without a cigarette.

But you can do it! Quit smoking and mix in some cardio a couple times a week, your boners will thank you.