Researchers found “peak exertion was attained much faster climbing stairs than walking, which is why nearly everyone huffs and puffs going upstairs, at least until their ‘second wind’ kicks in after a few flights.” Er… second wind? I think it flew out the window somewhere around the sixth floor.
Day 2. This is fun!
…and why you should stick it in the fridge for 20 minutes just before drinking. Cheers.