If you've ever tried to cut back on junk food, you may have realized that it’s easier said than done.
People tend to get cravings when the brain starts calling for these foods.
Even though people’s rational, conscious mind "knows" that they are unhealthy, some other part of the brain seems to disagree.
Some people don't have this problem and can easily control the types of foods they eat, while others don't seem to have any control whatsoever.
If you are one of these people, despite your best intentions, you may repeatedly find yourself eating unhealthy foods, even when you have previously decided not to eat them.
Though you might think this is caused by a lack of willpower, the situation can be much more complicated than that.
The fact is junk foods stimulate the reward system in the brain in the same way as abusive drugs like cocaine.
For susceptible people, eating junk foods can lead to full-blown addiction, which shares the same biological basis as addiction to abusive drugs.