Final answer:
When transitioning from a job delivering letters and parcels to working with a computer, the amount of energy used by a 25-year-old person would decrease due to less physical activity. However, it is important for individuals in computer jobs to prioritize physical activity to maintain a healthy lifestyle.
Step-by-step explanation:
When a 25-year-old person changes from a job delivering letters and parcels to working with a computer, the amount of energy used is likely to decrease. This is because working with a computer is generally a sedentary job that involves sitting for long periods and minimal physical activity. In contrast, delivering letters and parcels requires physical exertion, such as walking or cycling.
Delivering letters and parcels involves constant physical movement, which increases the energy expenditure. This could be in the form of walking long distances, climbing stairs, and carrying heavy packages. However, when switching to a computer job, the person is likely to be sitting for longer durations and engaging in less physical activity. As a result, the overall energy expenditure is reduced.
It's important to note that individuals who work with computers should still prioritize physical activity outside of work hours to maintain a healthy lifestyle and compensate for the sedentary nature of their job.
Learn more about The impact on energy usage when transitioning from a physically active job to a sedentary computer job