Remember that a tense muscle is a working muscle. Ease up! Save energy for important duties." Stop now, right where you are, and give yourself a check-up. As you read these lines, are you scowling at the book? Do you feel a strain between the eyes? Are you sitting relaxed in your chair? Or are you hunching up your shoulders? Are the muscles of your face tense? Unless your entire body is as limp and relaxed as an old rag doll, you are at this very moment producing nervous tensions and muscular tensions. You are producing nervous tensions and.