Compare and contrast the health risks of the following two people: Aisha is a 28-year-old who swims vigorously for 30 minutes 5 days a week and attends a 30-minute Pilates class once a week. Jamal is a 28-year-old who walks slowly for 15 minutes twice a week and otherwise is sedentary while studying.

• A. Aisha meets guidelines; likely substantially lower long‑term cardiovascular, metabolic, and musculoskeletal risk than Jamal.
• B. Aisha gains long‑term benefit, but transient exertional cardiac stress during vigorous sessions may briefly narrow her advantage over Jamal.
• C. Jamal’s two brief slow walks confer similar long‑term cardiometabolic protection as Aisha’s routine regardless of intensity.
• D. Long‑term cardiometabolic risk is driven mainly by diet and genetics, so activity alone yields minimal differences between them.

Answer: (A)