Explain why some people can keep fit by just walking yet others need lot of running around

Different individuals have different body compositions, metabolism rates, and fitness goals, which can influence how their bodies respond to exercise.

When it comes to keeping fit, walking can be effective for some people because it is a low-impact activity that can provide cardiovascular benefits and help burn calories. Walking is accessible and can be done by individuals of various fitness levels and ages. It also puts less stress on the joints compared to high-impact exercises like running.

On the other hand, some individuals may need more intense activities, such as running, to achieve their fitness goals. The higher intensity of running can lead to increased calorie burn and improved cardiovascular fitness. Running also tends to engage more muscles and promote weight loss or muscle tone in a shorter amount of time.

The reasons behind the varying response to exercise can be multifaceted. Factors like genetics, body composition, muscle fiber type, and overall fitness levels play a role. Additionally, the individual's fitness goals, such as weight loss or muscle building, may require different exercise intensities and durations.

To determine what type of exercise is most beneficial for your fitness goals, it is important to consider your own body's response to different activities. Consulting with a medical professional or a fitness expert can provide personalized guidance based on your specific needs, abilities, and goals. It is also helpful to track your progress, listen to your body, and adjust your exercise routine accordingly to achieve the desired outcomes.