Runner's High

Many people have heard of runner's high and I have experienced it many times myself but it wasn't until this class where I fully understood what it meant.  Our body releases several types of neurotransmitter molecules similar to morphine in response to pain and vigorous exercise, these neurotransmitters are called endorphins.  As you run your body releases more and more endorphins causing your body to feel reduced pain and good feelings.  This would explain why so many people feel really well after a run.  Knowing this information you are able to understand why this shirt is humorous.  

Nike Dri Fit Tee