Lost 5kg after climbing stairs for a month.

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Starting at 7.14, 86.5kg
Just weighed in 81.5kg

Progressively climbing, now at floor 33 * 4, taking the elevator down. Started off with an empty stomach and completed it all in about 50 minutes of walking up and taking the elevator.

At first half-way through I felt like my lungs were going to explode, but now just after the first one I started sweating a little bit.