Oh yeah this is absolutely true. I've voluntarily done ~100-hour weeks, and even in my 20s it destroyed me, I needed multiple weeks to recover from even short p

Oh yeah this is absolutely true. I've voluntarily done ~100-hour weeks, and even in my 20s it destroyed me, I needed multiple weeks to recover from even short periods of intense "crunch". The idea that you're living at the office and actually being productive is just laughable. It is absolutely not helpful except in brief emergency situations.