My, oh myelin!

How many neural processes are going on within your body as you read this sentence?  The answer to this question is hard to fathom, I know, but give it a shot.   Try to imagine all the physiological events that are being controlled by your nervous system at this very moment.  Our nervous systems control a dizzying array of sensory, motor, and cognitive processes simultaneously, without us granting them “permission” to do so.  In fact, most of our neural functions require no mental energy on our part whatsoever!  For this reason, it is extremely easy to take these basic processes for granted.  However, if we were to witness the suffering of an individual with multiple sclerosis, we might begin to appreciate these things a little more.Continue reading

The Reward Pathway Reinforces Behavior

If you think about it, most of our daily lives revolve around food: when our next meal will be, what it will be, and how yummy it will be!  Evolutionarily, these have been essential thoughts for our survival, so that when we find food, we are compelled to eat as much as we can.  Not only does this ensure that we get all our necessary nutrients, but it also keeps competitors from stealing our meals.Continue reading

Do You Crave Sweets?

My answer is YES, all the time, no exceptions!  Do you remember when Miranda from “Sex and the City” was so addicted to chocolate cake that even after she threw it away, she pulled a piece of cake out of the trashcan and ate it?  No doubt we have all had a moment when we knew we should stop but it was impossible to resist even when we are not hungry!  So, why do we indulge in sweets?  Is it because of our emotions, or is it due to chemicals in our brains?Continue reading