What exercise does the speaker consider to counteract weight gain?

The choice of jogging as the exercise to counteract weight gain is supported by several reasons. Jogging is a high-intensity cardiovascular workout that effectively burns calories, which is essential for weight management. When people jog, they engage a variety of muscle groups and elevate their heart rate, leading to increased energy expenditure. This exercise can be done almost anywhere and doesn't require special equipment, making it accessible for many individuals.

Moreover, jogging can be tailored to suit one’s fitness level, allowing for gradual increases in speed and distance, which can further enhance its effectiveness in combating weight gain over time. Jogging also tends to improve endurance and cardiovascular health, contributing not only to potential weight loss but also to overall physical fitness.

In contrast, while swimming, walking, and cycling are also beneficial forms of physical activity, they may not be as effective as jogging in terms of high calorie burn within a shorter period. Each exercise can contribute positively to a fitness regimen, but jogging stands out for its efficiency in tackling weight gain through increased caloric expenditure.