I read an interesting article in the Behavioral Health Nutrition Newsletter about how food affects your brain. Not about the types of foods that are good for your brain, but about how eating affects your brain. What you eat and how much you eat involves a complex interaction between the body and the brain. Different parts of the brain are responsible for different aspects of eating. For example, the hypothalamus is responsible for hunger and satiety. The prefrontal cortex is responsible for sending signals to the body to eat more or to eat leas. And then there are also mechanisms that provide rewards. Certain hormones are released from the brain to communicate with the body that a food is good.
Recent research has found that also the amount of food you eat impacts this communication system. In animal studies undereating increased the dopamine response where as overeating did the opposite. Overeating made the dopamine receptors less sensitive. Furthermore, which is really interesting, is that undereating or overeating changes the structure and the volume of your brain!
Eating too little but also eating to much is not only bad for your body, but it is also bad for your brain, and the complex communication system that exists between your brain and your body. I often talk to clients about this concept, but now there is actual science behind it.