According to verywellfit “Cardio exercise simply means that you're doing a rhythmic activity that raises your heart rate into your target heart rate zone, the zone where you'll burn the most fat and calories.”
Wear a hat, long sleeve shirts, and long pants to cover the skin.
Wear sunscreen when in the sun.
Avoid being exposed to the sun without some type of protection.
Catherine should hire somebody who has been to medical school. Although she may trust the woman, things could still go very wrong.