Medical term for lazy

<p><font color="#3300ff" size="3">A man told his doctor that he wasn't able to do all the things around the house that he used to do.</font></p><p><font color="#3300ff" size="3">When the exam was complete, he said, "Now, Doc, I can take it. Tell me in plain English what is wrong with me."</font></p><p><font color="#3300ff" size="3">"Well, in plain English," the doctor said, "you're just lazy."</font></p><p><font color="#3300ff" size="3">"Okay," said the man. "Now give me the medical term so I can tell my wife."</font></p>