Lifting a box :- Muscular fitness
Swimming - Cardiovascular fitness
Touching one's toes - Flexibility
Stretching one's arms - Flexibility
Walking up stairs - Cardiovascular exercise
Running - Cardiovascular fitness
Doing push-ups - Muscular fitness
Carrying bags - Muscular fitness
Twisting one's arms - Flexibility
Maybe a personal trainer or a doctor that helps with sports injuries
The risk-benefit assessment is widely used in the field of medicine. Apart from being therapeutic, it is a known fact that synthetic medicines also carry side effects. However, if the healthcare provider believes that a certain medication outweighs the side effects, then he or she will prescribe the said medicine. This is the very reason why the concept of risk-benefit is truly vital.