Alcoholism and drug addiction
Misuse of recreational drugs, including illicit drugs and prescription drugs, can alter our bodily functions and lead to erectile dysfunction. The use of these substances can sometimes cause severe damage to the nerves and blood vessels, resulting in an erection. Nicotine causes a decrease in sexual desire, heroin can reduce testosterone levels, cocaine can restrict the blood vessels around your penis, and marijuana can prevent the smooth muscles in your penis from relaxing to allow adequate blood flow.
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