A 16-year old girl tells her doctor that she has not had menstruation for 2 months. A pregnancy test shows that she is not pregnant. What is a likely explanation for her condition? Select one: A. Endometriosis B. Low levels of estrogen and progesterone C. D. E. Cervical cancer Premenstrual syndrome Severe emotional stress O O O O

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Stress

Stress is defined as the feeling of being overwhelmed or unable to cope with emotional or mental pressure. Any event or action that makes a person annoyed, furious, or nervous can trigger it. Chemical changes in the body caused by stress can cause blood pressure, blood sugar levels, and heart rate to rise.