Many years ago, I blogged about climbing stairs to keep fit. I have not been climbing stairs for almost 3 years because I have been staying at home most of the time. I could feel my fitness level dropping although I tried doing some aerobic exercises at home during the pandemic. Stair climbing is just more effective and also efficient. It is a low impact exercise that is twice as effective as jogging which means we won't destroy our knees. It is a low impact exercise that is three times more effective than cycling and we don't have to spend money on a bicycle too. I aim to regain my pre-COVID-19 fitness level in the next few months by climbing stairs twice or thrice per week. I was doing 90 to 120 floors each time before and that is what I aim to do again....