Chapter 7: Amping Up the Neurons.
Short review of this chapter because I'm not sure if I understand it all

-When we eat food rich in sugar, fat, and salt, we stimulate neurons, which are the basic cells of the brain.
-neurons communicate with each other to create feelings, store info and control behaviour.
-neurons respond to rewarding foods by firing electrical signals and releasing brain chemicals
-a single food can also stimulate many different neurons. For example one set of neurons may fire at its sugary taste while another fires in response to its creamy texture, and still another is provoked by its aroma
-the cumulative effect of all this is that sensory stimluli (sight, smell, texture, taste) canuse the neurons to fire more and the message to eat becomes stronger.
-the most powerful sense is taste but sight and smells of food also motivate us to eat.
-Taste is the only sense that is hardwired to brain cells that respond to pleasure. It prompts the strongest emotional response.
-when we put a highly palatable food in our mouths, taste buds in the tongue respond by sending a signal to an area of the lower brain . When the lower brain receives that signal, it activates the neural circuity that contain natural opioid molecules. The opioid circuits enable the body to perceive a rewarding experience. From the lower brain, the sensory experience of taste travels though the midbrain, reaching regions where the sensory signals of food are integrated and relayed to an area of the brain that is a center of reward.
-the opioids prodcued by eating high-sugar, high-fat foods can relieve pain or stress and calm us down. In the short run, they make us feel better,we see this in infants who cry less when given sugar water.