The brain is the control center of the whole body. It uses a quarter of all the energy produced, and the billions of neurons it contains make up half of the body's nerve cells. It stimulates motor functions, digestion, growth, it interprets your sensory experiences and decides the appropriate physical and emotional responses. Yet the brain makes up little more than 2 percent of your total weight. This makes it extremely sensitive. Nutritional deficits can cause chemical imbalances which can take the form of fatigue, memory loss, anxiety.

Without neurotransmitters there would be neither memory nor emotions. There are dozens of these chemical messengers in the brain, but six of them lead the way and can be modulated through diet. Neurotransmitters are essential for our well-being, because they are the ones that allow the brain to communicate with the rest of the body.