One of the characteristic manifestations of prolonged stress is decreased performance in tasks that require attention, including the ability to shift focus as well as to learn and unlearn information. Anxiety and depression can make a person feel as if he
The conventional concept of tumor-host interactions is rooted in the realm of parasitology. A tumor invades an unsuspecting host, and in response to this assault, the host attempts to resist the advances of the tumor by calling on the armamentarium of the