Good Shepherd Lutheran Church

Health Ministry

May 2005 - Addiction

Addiction can result as an extreme consequence of the human need for either physical or psychological pain relief. It describes an exaggerated degree of dependence on a substance (e.g. alcohol) or an activity (e.g. shopping) that involves both a physical and psychological component. The physical and psychological components of addiction can be explained by an understanding of the addict’s brain.

Brain cells react to stimuli from external and internal sources which may elicit changes in our movements, thoughts, feelings and memories. These changes occur in the brain cells through chemical reactions involving biologically active chemical messengers known as neurotransmitters. Substances of abuse interfere with or facilitate the actions of neurotransmitters. The neurotransmitters that facilitate addiction are released by the 10 billion nerve cells (neurons) involved in information transfer. Neurotransmitters circulate, collect and act at specific sites on cell surfaces. When too much neurotransmitter is present on the cell surface the body has an efficient control system which activates causing reuptake of the neurotransmitter back inside the cells where they aren’t active. Some substances of abuse can block this reuptake mechanism which leads to vast over stimulation of nerve cells, creating intense feelings of excitement and joy. However other substances block the release of neurotransmitters which can lead to intense irritability, depression and craving. This is why it can be said that what we feed our mind is so very important.

Psalm 30:2 (NIV): O Lord my God, I called to you for help and you healed me

Return to Index of Health Ministry Articles