Crossword Puzzle Can Stress Make You Sick?Online version This is a crossword puzzle to practice vocabulary taught in this article. by Hannah Kessler 1 The system that protects your body against disease and infection 2 working 3 shows or proves something 4 thought that something was true 5 illness that was caused by germs or viruses in your body 6 a bereaved person feels sad because someone very close to him has died 7 one of the things that help produce a result 8 people who are training to become part of the army 6 7 2 3 5 4 8