For someone, like me a few years ago, who is undisciplined and has not spent time cultivating self-control this is hard to hear. If you find yourself making excuses when you read this article for why the power hierarchy is against you, or that there is bias in the results of this study (as some of the comments here allude to), then you should consider reevaluating why you are making excuses. It's a sign that this post triggered you and your response was to make an excuse rather than accept a correlation that speaks to an underlying hard truth. Once you start digging into "why did I make an excuse" and chase that feeling over and over whenever you find yourself making excuses, you will start to realize that you can't think of a reason why you made an excuse, it's just what you've done and reinforced in the past. If you've read this comment this far and you have a spark of curiosity and relate to not knowing why you are making excuses, I suggest you take this moment to chase it down and gain agency over your own life. Some would say this is your red pill moment. 'The Daily Stoic' woke me up, I highly recommend it. Discipline equals freedom, my friend, and we sorely need you.