Dr. Hans Selye researched and popularised a tiny membrane in the back of our head known as the RAS: Reticular Activating System. Your RAS has a primary function: it moves you in the direction of your dominant thought at that moment.

We naturally act on what fills our minds. When we become preoccupied with a thought, eventually we want to act on it. This explains a lot of things – like why so many rapes happen after guys have watched pornography night after night. It also explains the huge amount of violence among young people between the ages of 12 and 24. By then the average young person has seen more than 4,000 murders on TV, not to mention video games.

Indiana University School of Medicine studied how the images we see impact our brains. For instance, adolescents who had a higher level of exposure to violence had reduced levels of cognitive function. The more violence they saw the less thinking, learning, reasoning and emotional stamina they had. The garbage they fed their minds affected what came out. Their computer stored the wrong information – now they could only retrieve the wrong stuff.

Paul said, “Fix your thoughts on what is true, and honourable, and right, and pure, and lovely, and admirable. Think about things that are excellent and worthy of praise. Keep putting into practice all you learned and received from me — everything you heard from me and saw me doing. Then the God of peace will be with you.” Phil 4:8-9

Contributed by Geoff Follas