I do 2700 steps, 2k elevation gain every friday (for the last 6 months) + hiking. My cardio has improved drastically but I am still terrible at running. No drawback really - maybe too much upper leg muscle eventually?
I live on the 4th floor, my breathing doesnt even noticably increase after climbing up, which is great.
Btw exercise is for building muscle and improving heart health. Dont delude yourself into thinking you’re burning a notable amount of calories, there’s a lot of misinformation out there. You lose weight by dieting.
I love how we name laws that really mean the exact opposite of what their name implies. Very american.