As someone in my late 30s I think the main reason is this- Its time then to stop fking around and just get it done. It dawns on you at this age where you are in your life, how far you've got to go and it annoys you that thus far you didn't get 'it' done yet.
You're not staring death in the face but you're close enough to feel its influence. If not now when? That spurs you on, beyond any motivation you ever had at any age before. The experience helps, the realisation that those before you weren't any more special than you helps, but the ticking clock motivates like nothing else.
Here's my own personal motivator that has meant the most at this age.. — 'Most men lead lives of quiet desperation and go to the grave with the song still in them.' - Henry David Thoreau. That should scare the hell out of you, unless you're not old enough yet.
You're not staring death in the face but you're close enough to feel its influence. If not now when? That spurs you on, beyond any motivation you ever had at any age before. The experience helps, the realisation that those before you weren't any more special than you helps, but the ticking clock motivates like nothing else.
Here's my own personal motivator that has meant the most at this age.. — 'Most men lead lives of quiet desperation and go to the grave with the song still in them.' - Henry David Thoreau. That should scare the hell out of you, unless you're not old enough yet.