IMO developing good sleep hygiene is by far the most important habit to cultivate.

It has lots of benefits, but the most important one is it replenishes your willpower. If you're trying to develop other healthy habits, it's 10x harder if you haven't slept well.

It's also the easiest to implement, imo. But there is a tradeoff: fewer waking hours during your best years cognitively for more years when you're older...

Poor sleep is a widespread problem and very few of those people are cognitively doing it intentionally as some sort of "tradeoff". The number of people "grinding on a startup" is tiny compared to the population of people who suffer from this problem. Instead it's caused by things like general anxiety, too much screen time before bed, or not having consistent sleep schedules. And other health related reasons that compound the problem.

You can add having a child to the list. Nothing has caused more disruption to my sleep as my son has done

Waking hours is both a quantity game and a quality game. I don't remember too much from the parts of my life where I was very sleep deprived

Have some kids and tell me how easy it is. I havnt had an uniterupted sleep in 4 years

Orphanages are always an option

"eat healthy food as much as possible."

I usually stop, if my body signals me I had enough.

(might seem like pedantery, but I know some people do believe it literally, that it is healthy to just fill themself up with "healthy food", but it is not).

I think the commenter meant such that as much as possible of your diet consists of healthy rather than unhealthy food — NOT as great a quantity as you can take in.

I know, I took the literal meaning because I know some do live by that.

Fair enough! Just because I don't doesn't mean I shouldn't broaden my scope.

haha yeah I meant like choose to cook the chicken in your freezer with some veggies over going through the drive-thru