Circuit breakers are a simple solution to a potentially deadly and costly problem. When a circuit trips, we simply open the fuse box, flick a switch, and providing there is no deeper fault going on, we reset the system.

Now, imagine if we could do this with our brains. How much potential damage to our mental and physical health could we prevent if we had an automated switch that simply cut off the power to our unhelpful thought patterns before they escalated to breaking point?