Explain the consequences of this addiction to the brain tissue

If you have an addiction with cigarettes or e-cigarettes or anything that makes you addicted this can make your brain deteriorate. 1. Cigarettes contain nicotine which causes the addiction. Once you smoke, the smoke will get into your blood stream and ruin your alveoli and destroy brain cells because barely any oxygen is going to your brain. 2. Nicotine takes over your brain causes you want to do more dangerous drugs that can kill you. Hope this helps