Nutrition Through The Life Cycle

7th Edition

Brown + 1 other

ISBN: 9781337919333

Textbook Problem

Exercise can be bad for you—or at least it is for Anna Marie. She and her husband Mark already have two delightful children, full-time jobs, and hectic schedules. Mark wants more children, but Anna Marie is dead set against it. Mark refuses to use contraception and has made Anna Marie promise not to use any, either. Anna Marie makes the promise because she thinks she can avoid pregnancy by staying at her weight of 210 pounds. At this weight, Anna Marie seldom has a menstrual period and figures the odds of conception are slim. For two years, Anna Marie’s plan for avoiding conception has worked.

Now that the children are older, Anna Marie finds she has a bit of free time, which she uses to indulge her love of swimming. Within months of beginning her program of swimming regularly, however, Anna Marie abandons it. Her menstrual periods have become regular, and her contraception method is lost.

Anna Marie's weight at 210 pounds has remained stable during the months she has been swimming. It appears that her improved level of physical fitness and body fat has improved her fertility status.

Give an example of a hormonal change that may have occurred after Anna Marie began exercising regularly.

Summary Introduction

To discuss: The example of a hormonal change that has occurred after Person A began exercising regularly.

Introduction: High level of body fat can adversely affect fertility and pregnancy in women. It leads to hormonal and metabolic changes in the body. Metabolic abnormalities (insulin resistance and chronic inflammation) and hormonal changes can influence the reproductive processes of ovulation in women. The female reproductive cycle involves a continuous correlation between the ovary and the brain. Hormones released by the hypothalamus, the ovary, and the pituitary are responsible for the regulation of the monthly cycle.

Explanation

Person A and her husband have two children, full-time jobs, and hectic schedules. Her husband had planned to have more children and requested her not to use any kind of contraception. Person A had a weight of 210 pounds. At this weight, she was unable to conceive and was not having regular periods for the past two years. Person A began to swim regularly; however, her menstrual periods have become regular, due to which her contraception method was lost. It appears that her improved levels of physical fitness and body fat have improved her fertility status.

Person A has a weight of 210 pounds, which indicates that she is overweight...

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Health & Nutrition Nutrition Through The Life Cycle 7th Edition

Match each structure with its description. testis a. conveys sperm out of body epididymis b. secretes sem...