Bad choices are definitely not all there is to the story of addiction. There is actually science involved in addiction – brain science, called neurochemistry.
To sum up this neurochemistry of addiction, it helps to know that we are all born with certain levels of neurochemicals or neurotransmitters in the brain. Drugs and alcohol change those levels, often elevating them, getting people addicted to the euphoric feelings these drugs create. If you do enough drugs and alcohol, it can get those neurotransmitters in the brain severely out of balance. But you can also be born with low levels of these neurotransmitters in the brain, which makes you more susceptible to addiction.
If you’d like to learn more about the neurochemistry of addiction, you’d likely find Dr. Von Stieff’s book, Brain in Balance: Understanding the Genetics and Neurochemistry behind Addiction and Sobriety to be a fascinating read. You can also find parts of his lectures on YouTube. Let us know what you think!