Most people think about pain as a simple cause-and-effect process. For example, if you touch a hot stove, you probably assume that the nerves in the skin feel how hot the stove is and signals are sent ...

As we all know, aging can be a pain in the neck (literally … and in the back, legs, etc.). The process of aging does many things to our bodies (i.e., muscles begin to lose their strength, eyesight ...