What I learned by waking up at 4:30 a.m. for 21 days

Filipe Castro Matos In 2014, I put myself to a new challenge. It was one of the biggest life hacks I’ve ever done. The challenge was simple: waking up 21 consecutive workdays at 4:30 a.m., a challenge I gave the name of #21earlydays. I was already used to waking up early (6 a.m. almost every day), but this time I wanted to go further. I wanted to test myself and be more aware of my own limits. And at the same time, my idea was to share my progress with the world and try to change some preconce...