Stair climbing helps you to burn 5 calories per single stair step. Since access to a staircase is easy to get, anyone can start doing this exercise without spending a single penny. In other words, this is low cost and high impact exercise. However, this exercise is not for those people who suffer with high BP, cardio problems, weak knees, etc. Normal people without any health complications can do this exercise. People suffering with health complications, please consult your doctor before doing this exercise. Thank you.