Kiara and Tiana are both African American 21-year-olds. Neither smokes; neither is overweight. Both eat similar diets. Kiara, however, exercises 4 times each week; Tiana does not exercise. Tiana's risk of breast cancer is ______ times as high as Kiara's.

Question

Quizplus · Accepted Answer

Regular exercise has been shown to decrease the risk of breast cancer, so Tiana's lack of exercise puts her at a higher risk. Studies have found that women who exercise regularly have a 10-20% lower risk of breast cancer compared to those who do not exercise. Therefore, Tiana's risk is 2 times as high as Kiara's.

Kiara and Tiana Are Both African American 21-Year-Olds