Have you ever tried doing this? When I did this for the first time, I felt short of breath (phewwwww)
And since then I felt the need to start doing it on a regular basis. I stay in a 7 storey building and use the stairs till the 4th floor as of now.
I am also going to follow this when I go to Shopping malls or any other place where I can avoid the Elevator.
Do try this and make it a habit 🙂
All the best 😉