Which activity is a form of aerobic exercise mentioned for an active lifestyle?

• A. Reading
• B. Sleeping
• C. Biking
• D. Video games

Answer: (C)

Aerobic exercise is sustained, rhythmic activity that raises your heart rate and breathing for an extended period, using large muscle groups. Biking fits this perfectly because pedaling continuously elevates heart rate, can be maintained for many minutes, and engages the legs in a rhythmic pattern. This builds cardiovascular endurance and overall fitness, making it a key part of an active lifestyle. Reading or sleeping are rest or sedentary activities with little impact on heart rate, while typical video games are usually sedentary and don’t provide the sustained effort that characterizes aerobic training. For heart health and daily activity, biking is the clear choice.