Research does not say that people produce more when working 40 hours per week
I wonder how they got this curve. A lot of things can be sustained for 1 week cannot be sustained in the long term. I&#x27;d say in the long term:<p>* 140-168 hours&#x2F;week --&gt; almost certain death.<p>* 100-140 hours&#x2F;week --&gt; at risk of cardiovascular disease and many other serious medical conditions. Possible early death.<p>* 80-100 hours&#x2F;week --&gt; still super-bad for your body. Forget raising children, dating, getting married, or even making friends. You won&#x27;t have time for any of those. Expect clinical depression.<p>* 60-80 hours&#x2F;week --&gt; you might be able to have meals with friends but forget having a life, hobbies, or anything outside of work. Expect depression and overall culture of unhappiness.<p>* 50-60 hours&#x2F;week --&gt; sustainable but not really fun. You can&#x27;t join family or friends for dinner. Expect talented employees to leave because they&#x27;ll find something that they enjoy more than being in your company.<p>* 40-50 hours --&gt; reasonable level for long-term sustainability and retention