(1) The doctor warned us against overtiring the patient.

(2) You're overtired and a good holiday will pull you out.

(3) Aim to have frequent breaks before becoming overtired.

(4) If you are low in stamina you will have lost your ability to get through the day without becoming over-tired.

(5) And she thought, oh, maybe she was just overtired, and so forth.

(6) But guard against getting overtired on the one hand, and on the other against become sluggish from too little exercise.